In a university in Saint Petersburg, math teacher Aleksa falls in love with astrophysics teacher
Maximilian when she finds him almost freezing to death while he looks at the stars. The couple soon
marries and Aleksa gets pregnant with a baby girl that Maximilian wants to name Jupiter
even if Aleksa hates it. One night, a group of thieves breaks into their apartment and robs
them. Maximilian tries to at least make them leave his beloved telescope, but the thieves answer by
shooting him before running away with their loot. Alone and depressed, Aleksa decides to move with
her relatives in Chicago and takes a ship to the USA. In the middle of the trip, the baby is
born and Aleka names her Jupiter in memory of her husband. As she grows up, Jupiter's aunt tells her
she is destined to achieve greatness and find true love. But years later, an adult Jupiter thinks her
life sucks. As the daughter of immigrants, the only job she can find is being a cleaning lady
for rich people, and on top of that she has to live with a big family in a small house, never
having real privacy. Meanwhile on an abandoned planet far away, the three siblings from the
powerful House of Abrasax meet after a long time. This planet is empty because the family harvests
people from different civilizations to make a potion that keeps them young. Recently their
mother died and left each of them some planets: the eldest sibling Balem was the one to receive
Earth, and Titus, the youngest, wants to buy it. Kalique points out Earth is incredibly expensive,
and Balem leaves without a word. The next day, a hunter known as Caine appears in the streets
of Chicago and is spotted by bounty hunters Razo, Ibis, Falque. The trio watches Caine use a special
gadget to get through a door, indicating none of them are from Earth. They're sure Caine is hunting
the same victim as them and decide to follow him. The place Caine has broken into is a clinic,
and he's checking out the profile of a patient named Katharine because he can use his advanced
sense of smell to look for clues. When he comes out, he finds the trio waiting for him,
so Caine activates his floating boots to run away. The trio opens fire to stop him,
but after exchanging a few shots, Caine manages to escape, and Razo tells her partners they should
warn their boss Balem. In the meantime, Kalique talks to her servants because she wants to be part
of the hunt on Earth too but she doesn't want her brothers to know about it. Balem is also talking
to his people and when he hears they've found a special geneprint in Katharine, he sends orders
to get her killed. This Katharine person turns out a friend of Jupiter's. Tonight she's helping her
find a dress, and while Jupiter is in the closet, she hears Katharine scream. When she takes a look,
she discovers a group of grey aliens about to do something to Katharine's floating body,
so Jupiter takes a picture with her phone. At that moment, her phone rings and gets the attention of
the aliens, who immediately knock both humans out. A moment later, the women wake up without
remembering what happened In the evening, Jupiter has dinner with her family, and her cousin Vassily
gives everyone their next cleaning jobs. Jupiter asks if she can borrow some money because she's
dreaming about having a telescope like her dad's, but Vassily tells her she needs to save on her
own. Later in private, cousin Vladie convinces Jupiter to sell her eggs for money, and he gets
a percentage for the sale. The next day, Jupiter goes to the clinic using Katharine's name. While
she's fooling around on her phone, she finds the picture she took of the aliens. Before she can do
anything about it, the doctor calls her to the surgery room. While the nurses get her ready,
Jupiter begins feeling something's wrong and wants to get out, but her body suddenly starts floating.
It turns out the whole staff is actually aliens, and when they check her DNA they confirm she's the
one with the special geneprint - the confusion came from the mixed names. The aliens intend to
kill her, but at that moment Caine shows up and shoots them all before rescuing Jupiter,
who passes out. Meanwhile in a spaceship, Titus receives news that his hunter found the girl,
so he sends transport to pick her up. Balem also hears about the incident at the clinic
and desperately orders his people to double the security deployment. Twelve hours later, Jupiter
wakes up in a strange room and immediately grabs Caine's gun to demand answers. Caine explains
there are all kinds of life on many planets across the universe, for example he's a half-human
half-wolf that was bred for the military, but it didn't work out. The little grey guys are
known as Keepers and want to kill her because of her particular genes. To prove his story,
Caine shows Jupiter the gadget that opens portals on walls and his floating boots. At that moment,
Titus' spaceship sends a beam for them, so Caine picks up Jupiter to fly towards it. Unfortunately
Balem's ships also arrive and make Titus' ship blow up. The explosion causes the pair to fall,
but Caine acts quickly and catches Jupiter before he begins flying away. A chase begins through
Chicago as the enemy ships shoot at Caine, hitting various buildings and cars in the way. Caine takes
them to a bridge, under which he hid a shuttle he stole from the enemy. Now they're safe inside
this shuttle, Caine can fire back and even hide underwater when necessary. He's a good pilot,
but the shuttle still receives lots of damage and Caine has to jump out with Jupiter before
it explodes. At least they land safely thanks to the boots. The next morning, Caine steals a car
and drags Jupiter with him as she demands more answers. Caine explains that they're
tangled in a war within the Abrasax family, one of the most powerful dynasties in the universe.
In fact they're so powerful that they're already rebuilding all the places their fight destructed,
and the Keepers will erase everyone's memories like they did to Juniper the other day. Caine only
knows Titus wants Jupiter to be taken to his ship, and that Balem wants her dead. Speaking of Balem,
he uses a hologram to inspect the Keepers' memory of the clinic incident and tells Jupiter that
sometimes he "misses her". Then he reminds his guards that'll kill anyone who makes another
mistake. A few hours later, Jupiter and Caine arrive at the house of Stinger, a friend of
Caine's. Stinger used to be a marshal for the Aegis, a team that functions as space cops. As
soon as Stinger sees Caine he begins attacking him because he doesn't want to be dragged back into
his old life. The fight is suddenly interrupted when a bunch of bees begins surrounding Jupiter,
moving along the movement of her hands. When Stinger notices this, he immediately kneels
and calls Jupiter "your majesty" because bees are capable of recognizing royalty. Then everyone is
invited inside and Stinger cures Caine's wounds with an instant spray while revealing Caine
used to have wings and he lost them when he was court-martialed. Jupiter gets a call from Vladie
and while she takes it, Caine explains to Stinger that he didn't know she was royalty, Titus only
promised to pay him with new wings. Moments later, Stinger explains he's managed to contact the Aegis
and they'll come to pick them up tomorrow. While Caine gets armed with Stinger's collection of
weapons, Stinger tells Jupiter that Caine got court-martialed because he bit an elite person,
and since Caine had been under his command at the time, Stinger got fired too. He also tells Jupiter
that humans aren't native to Earth, it was the Abrasax industries that killed all the dinosaurs
and filled the planet with people to be harvested later. Before Juniper can ask what harvesting
is about, Caine informs them the trio of bounty hunters and many Keepers are outside. Caine stays
behind fighting with both guns and his fists while Stinger runs with Jupiter, but he has to open fire
as well when they're surrounded. Falque finds them and pushes Singer back with a shockwave, but when
he tries to get Jupiter, the bees come to her defense. Jupiter runs to hide in the cornfield,
but Falque catches up to her and knocks her out with another shockwave. The Keepers approach
Jupiter to kill her, but at that moment Razo and Ibis show up and betray Falque, killing him
and the Keepers before taking Jupiter into their ship. Caine finishes off his opponents and rushes
out of the house just in time to jump onto the ship undetected. Some hours later, the hunters'
ship arrives at an alien city, and Caine jumps off the ship before he can be seen. The hunters sell
Jupiter to Kalique's people, who pay better than Balem. When Jupiter wakes up, she finds herself in
a fancy dress inside a strange room. Kalique comes to see her and is shocked at how much Jupiter
looks like her dead mother. To prove her point, Kalique takes Jupiter to see a statue that looks
exactly like her, revealing that Jupiter's the reincarnation of Kalique's mother, who had been
ninety-thousand years old and got murdered. While Caine sneaks into the mansion and follows his nose
to find Jupiter, he's found by the guards, and he fights them through the corridors. Kalique shows
Jupiter a special pool with water that makes her look young even if she's actually fourteen
thousand and four. This is the potion the siblings grow by harvesting people's lives, but Kalique
doesn't say it directly. She explains to Jupiter that her mother owned Earth and since Jupiter's
her reincarnation, she can claim the planet for herself and join the rich life. Their conversation
is interrupted by Caine, who tries to take Jupiter away, but Jupiter trusts Kalique and accepts to
wait for the Aegis to arrive. In the meantime, Balem kills the general that failed to get Jupiter
again and sends a new soldier known as Greeghan after her. A few moments later, Aegis Captain
Tsing arrives together with Stinger and promises to escort Jupiter to the commonwealth ministry on
Orous. After Jupiter changes into more comfortable clothes, Caine checks on her and they have a sweet
bonding moment. Jupiter tries to flirt with Caine but he turns her down because she's royalty and
he's just a dog. Eventually the ship makes it to Orous, the original humans' birthplace. An
android guides Jupiter through many offices and lots of bureaucratic paperwork that becomes too
tedious and almost impossible to finish. To get it done more quickly, the android ends up bribing
an employee and Jupiter finally gets a seal on her wrist that brands her as royalty. Afterward,
Jupiter wonders why Caine is still sticking around now all it's done, and he explains Stinger
believes they may be accepted into the force again if they help her. Unfortunately when Stinger shows
up, he's surrounded by bounty hunters and he betrays Caine because he made a deal with Titus.
Moments later, Jupiter is taken to a different spaceship and meets with Titus, who promises
he'll take her back to Earth if she accepts to have dinner with him. Meanwhile Titus' guards
lock Caine in a cell. Over dinner, Jupiter asks about Caine, and Titus tells her he sent him back
to his homeland. He also explains Kalique lied to her and finally tells Jupiter that the youth
potion is made out of human lives. As he shows her his stash of potion bottles, Titus explains his
mother changed her mind about the harvesting and intended to end the business, that's why
she was murdered. Titus pretends he never made potions, he only rescued these bottles because
he intends to finish his mother's goals. Jupiter believes him, but when Titus asks her to marry him
in order to work together against his siblings, she hesitates. Meanwhile Stinger gets in contact
with Titus' guards to finish their deal. After they hang up, it's revealed Stinger was captured
by Tsing and that she made him call to trace the ship's location. Caine is taken to see Titus and
calls him out for lying to him, Titus explains lies are simply necessary to survive. He plans
to marry Jupiter and then kill her so he can get Earth for himself. At that moment, Caine is shot
into space as punishment for his betrayal, and on his way out, he manages to kick something on
the wall. Then Caine uses his boots to break the handcuffs and grabs some of the wall debris, which
turns out to be protective gear. Unfortunately he can't make it back to the ship because it escapes
through a portal. The gear doesn't have much oxygen left and Caine remembers Jupiter while
thinking he's about to die, but thankfully the Aegis shows up just in time to rescue him. He
informs the crew they need to save Jupiter and asks for Stinger's help, so Stinger gets the
chance to explain he only betrayed them because Titus promised a cure for his sick daughter,
otherwise he's on Aegis' side. Back on Earth, Jupiter's family is worried about her and yells
at Vladie for having lost her to a suspicious clinic. At that moment, Greeghan breaks through
the ceiling and captures them all. Sometime later, Jupiter confesses she's unsure about the wedding
and asks to see Caine. Titus tells her Caine left because he attacked people again, then points out
the wedding is just a contract to protect the innocent. He also shows her that he had prepared
a rite of pardon for Caine and didn't use it just because Caine betrayed him. Convinced of Tritus'
good intentions, Jupiter accepts to marry him. A few hours later, Jupiter is put in a beautiful
dress and taken to the ceremony. Outside, Titus' fleet surrounds the ship to defend it against the
incoming attack from Aegis. Caine and Stinger are still excellent pilots and fight fiercely
against the enemy while Jupiter hesitates at the altar. She barely finishes her vows,
and when a symbolic ring is about to be printed on her finger, she tries to take her hand back as she
hears the noises of the battle. Titus forces her hand back in place, but at that moment,
Caine breaks into the room and points his gun at Titus as he tells Jupiter the truth. He wants to
kill Titus, but Jupiter just asks him to take her away. The Aegis ship takes Jupiter away and she
takes the chance to give Caine the pardon she stole from Titus. Caine wants to bond with her
more, but Jupiter doesn't want anything else to do with this. Moments later they arrive on Earth and
Jupiter finds her home in ruins. Greeghan is there too with a bunch of Balem's men,
they explain that Jupiter must come with them to abdicate her title if she doesn't want her
family to die. Tsing and Caine think it's a trap, but Jupiter accepts to go anyway. Jupiter's taken
away by Greeghan in his spacecraft while Tsing and Caine try to follow them on the Aegis ship.
However as soon as Greeghan's craft crosses the portal, they close it so that the cops
can't follow them. Tsing has to quickly turn the ship around before they get caught in a dangerous
storm. This storm surrounds Balem's dominion and Caine is hesitant to act, but Stinger comes and
gives him a heartfelt speech about how much he needs Jupiter. Desperate to have his own pack,
Caine decides to go to the planet alone. His shuttle is damaged by the storm and his landing
ends up being a violent crash, damaging the gravity hull on its way down. At Balem's dominion,
Jupiter meets with him and accuses him of killing his mother, causing Balem to slap her for it. Then
Balem makes Greeghan almost kill Aleksa, only stopping him when Jupiter accepts to sign the
abdication to save her mother. However when she's about to sign, she realizes Balem will harvest
Earth soon, and she refuses to exchange millions of lives for her family. At that moment, Balem's
men inform him of the damage to the hull, and Caine suddenly breaks into the palace and attacks
Greeghan. Seeing her family will be safe, Jupiter destroys the abdication tablet, causing Balem to
try to kill her. Jupiter quickly gets him off her with a kick. Furious, Balem orders his guards to
kill Jupiter, but Caine is faster and rescues her by opening a portal right under her. He hides her
in a safe spot while he shields her, and Jupiter kisses him before he goes back to fight Greeghan.
Jupiter then begins moving her family away while people on the planet begin evacuating since the
broken hull makes it an unsafe atmosphere to live in. The opening of the blockage allows
the Aegis to bring their ship closer. Balem tries to attack Jupiter while she's distracted,
but Jupiter got a gun from Caine and shoots him in the legs. The palace begins to crumble under
the effects of the broken hull and an explosion breaks the floor under Jupiter, causing her and
Balem to fall. Caine wants to rescue her, but Greeghan still insists to fight him and flies
him out of the building by grabbing him with his tail. While Jupiter and Balem miraculously save
themselves by grabbing a broken railing, Caine frees himself from Greeghan's hold and continues
to fight on his floating boots. He makes the beast crash on the floor by hurting his wings,
then he finally kills him by putting a portal around Greeghan's neck. Afterward Caine gets in
contact with Aegis and gives them his location so they can rescue all the members of Jupiter's
family. Meanwhile Jupiter is trying to find a way out, but the building keeps breaking under
her. She nearly falls plenty of times, but after a few dangerous jumps, she manages to re-enter the
palace. Balem's waiting for her and begins hitting her with a metal rod as he calls her "mother",
confirming he was the one who killed his mom and claiming that she had begged him to do it because
she hated her life. Jupiter steals the rod and retaliates with her own attacks, but she refuses
to kill Balem because of her principles. At that moment, the building finishes crumbling and Balem
falls to his death. Jupiter falls too but gets rescued by Caine, who puts protective gear on
her. There's no more time left, so Tsing opens a portal to leave with her ship. Caine notices
this and immediately uses his boots to dodge all the falling debris and cross the portal as well.
Minutes later, everyone is safely back in our solar system. Sometime later, Jupiter is back on
her average routine, but she surprises his family by approaching everything with a more positive
attitude. To apologize for the mess Vladie got her in, they gift her the telescope she wanted.
Once she's done with work, Jupiter meets with Caine for a date. Now Jupiter has her own pair
of floating boots, and Caine has his wings back. After sharing a kiss, they go flying together.