In the past century, technology has been developing rapidly thanks to people in power supporting
continuous wars all over the planet, which now include military robots.
Because of industrial overdevelopment, natural disasters, and nonstop wars, global ecology
has crumbled, and now diseases and famine shroud the world, filling the air with high
levels of toxins.
This has caused babies to be born with severe illnesses, like the daughter of elite pilot
Tyler, who died from a pollution-caused illness while she was still a child.
In order to try to restore the environment, governments around the world have built domes
known as Skynets that could purify the toxic air.
But during the building process, a giant meteorite fell onto district B16 and brought a giant
alien plant that scientists have named Pandora.
This plant thrives in water and wreaks serious havoc around the city trying to find it, but
ironically it's also capable of purifying the whole atmosphere.
A temporary command center is set up on B16 by ASU, Hong Kong's military force.
Tyler works there with his brother-in-arms Commander Johnson and junior officer Connor,
who is dating communications officer Lucy.
One day, Johnson welcomes Colonel Tam to the base, who has been sent by the genetics alteration
project.
She brings with her a whole army of robots, which makes Johnson wary because he thinks
they aren't reliable.
Johnson, Tam, and her team meet with Sean Lee, commander in chief of District B16 and
one of the forces behind Project Skynet.
Tam's team has developed a gene bullet that will stop Pandora's growth without destroying
it, that way they can stop the havoc but keep the air purifier at the same time.
However there are two storms coming soon that could make Pandora grow into the nearest town,
so they need to act before it begins to rain.
Sean Lee doesn't like the idea of losing his precious domes, but the team assures him is
for the good of humanity.
A few pilots will provide assistance to the robots that will carry out the mission, but
if they fail their objective before the second storm starts, Tam already has Plan B, which
consists of sending Orca bombers.
This will destroy the plant but also cause 160,000 casualties, which sounds horrible
but it's better than losing the millions that Pandora would kill if it grows again.
Johnson doesn't like that there aren't evacuation plans for these casualties, but he has no
choice but to obey, and he and Tam go to explain the plan to the pilots.
They must shoot contrast agent bombs into Pandora during the first rainstorm and allow
the base scanners to find the central pistil, then they'll send the robots to the corresponding
location to apply the gene bullet.
Tyler doesn't like that Tam doesn't have information on waiting times and won't comment on the
fact the plant may react badly to the bullets, which means his men could die.
In return Tam doesn't like Tyler either for this attitude, but Johnson assures her he's
the best man for the job.
Johnson also reminds Tam he's against Plan B, so he'll let his soldiers carry this until
the end.
Meanwhile in the B16 temporary settlement area, former pilot Skunk sees the aircrafts
taking off base and remembers when he used to work with Tyler and Johnson, but there's
nothing he can't do for his friends now.
Tyler is paired up with Connor and Lincoln for the mission, and all the aircraft reach
the target area just in time for the first storm.
They inject the contrast agent successfully, but now they must fly in circles around Pandora
until the base can finish the scan, and that means going against the plant's lashing vines.
Bullets aren't enough to stop it, and one by one the aircraft are destroyed or crash
to the ground.
Fortunately Tyler's aircraft is only hit on the fuel tank, giving Tyle enough time to
pull off a quick maneuver that saves them from crashing and finally finds Pandora's
pistil underneath a building.
Tam immediately sends an Orca aircraft with the robots to start the next step in the plan,
but while hiding in his office, Sean Lee remotely takes control of the robots and sabotages
the mission, causing Orca to crash.
He also activates a device that blocks all communication in the area, meaning Tyler's
team can't talk to the base anymore.
Unable to ask for help, the aircraft crashes in an improvised landing, and Lincoln gets
hurt in the process, so Tyler and Connor drag him to the nearest hospital.
At the base, Tam is ready to start plan B, but Johnson reminds her that the second storm
isn't here yet and volunteers to take the gene bullet to the pistil in a truck.
Tam accepts but only gives him three hours before she unleashes Plan B. Afterward, Tam
checks with Lucy, who explains the weather officer found a current of over 70,000 volts
when Orca went off the radar, probably caused by the thunderstorm.
Tam doesn't believe a thunderstorm can get rid of so many ships so quickly and orders
Lucy to find the truth behind the incident.
Moments later, Johnson arrives at the settlement area to look for Skunk and asks him to join
him in the mission.
Skunk refuses to risk his life for free, thus Johnson promises him he can keep the truck
and gain access to lots of food stamps as payment when this is all over; now Skunk's
officially his driver.
Back to the soldiers, Tyler leaves Connor in charge of covering Lincoln's wound while
he looks around to find medicine and supplies.
There's something hiding in the shadows that they can't see, but the noises worry Connor,
so Lincoln convinces him to go and check because he's fine.
Meanwhile Tyler comes across an old bunny that reminds him of his daughter, unaware
that the owner, a girl called Pansy, is still hiding in the hospital.
At that moment, Tyler hears some noises too and tries to communicate with Connor, his
message ends up appearing on Johnson's truck as well, sending the signal they need to find
them.
Suddenly, Tyler's attacked by the source of those noises: a mantis-like creature that
Pandora has hatched without them knowing.
Thankfully he reacts quickly and after some struggle to get it off him, he shoots the
monster until he kills it.
Connor isn't as lucky though: when he goes back to check on Lincoln, he finds another
one of these creatures devouring his friend and he runs away when the alien comes after
him next.
Nothing that Connor throws at the beast can stop it and he ends up hiding inside the morgue
refrigeration unit.
The alien can't break it, so instead it goes looking for its siblings to team up.
After sharing the location with Lucy, Johnson puts on a special suit and orders Skunk to
wait while he enters the hospital to look for their friends.
The monsters are now approaching Pansy, who is trying to hide among the beds, and when
they finally find her, Tyler shows up and quickly shoots the beasts to save her.
After giving Pansy back the bunny, Tyler drags her with him through the corridors as more
aliens come after them, and they get to escape thanks to Johnson showing up in his suit to
kill the reminding beasts.
While Johnson sends news of these creatures to the base and Sean Lee intercepts the message,
Tyler goes looking for Connor, who tells him the bad news about Lincoln.
Meanwhile being in the truck is making Skunk remember the day he left the force.
Tyler had scolded him for driving away during a dangerous mission and leaving many men to
die, and Skunk explained he did because he knew that they had been sent to die on that
mission on purpose because Skynet didn't care about their lives.
According to Tyler, if he wasn't ready to die he couldn't be a soldier, and Skunk was
forced to leave after thirty years of brotherhood His reminiscing is interrupted by a message
from Johson, who is running away with the others from the aliens that won't stop coming
out.
Johnson sends Sunk a meeting location and Skunk rushes to that area to use a special
weapon on the hospital wall, opening an improvised escape route for his friends to come out.
Once they're safe in the truck, Connor sends a new scan of the pistil to Lucy, who uses
this chance to make her boyfriend promise he'll come back alive.
Tam is having an argument with Sean Lee because he wants to start Plan B already, but Lucy
bringing the latest scan allows Tam to buy more time until the second storm comes.
Johnson wants to go looking for the gene bullets in the crashed Orca, but Tyler points out
they can't be sure if the bullets are even intact, which makes Skunk hesitate because
this could mean risking their lives for nothing.
A new argument starts that reminds them of the day Skunk left, but it's cut short when
Johnson gets the orders from Tam.
They must retrieve the bullets, otherwise the base will kick off Plan B and they'll
die anyway.
When the truck comes closer to the crash site, Connor's scanner gets a signal from the box
with the gene bullets, meaning they're fine.
They send a drone to find the exact location under all the debris, and Lucy takes the chance
to inform Connor in secret that a military signal blocked their communications earlier,
so he should find the robot head that did it.
Connor asks to team up with Johnson in the search, thus Tyler decides to stay in the
truck with Pansy to comfort her.
The girl is scared because she lost her family and keeps reminding Tyler of when he lost
his daughter, prompting him to promise he'll never leave.
After a long walk among the destroyed buildings, Johnson and Connor find the drone marking
the location in an area above them.
Johnson decides to use his suit injectors to pull off the jumps he needs, but the injectors
fail him and he's left hanging on the edge of a precipice.
Fortunately Tyler shows up at that moment wearing his own suit and saves him to then
continue the search together.
Eventually they find the bullet inside a car that is hanging on a thread, so Johnson uses
a firefighter hose to carefully lower Tyler inside it and he grabs the bullet right before
the car falls into the abyss.
Meanwhile Connor finds a grenade pin that indicates which robot sabotaged the mission
and immediately takes off its head.
Skunk is keeping an eye on the radio and hears his friend talk about him through the communicators,
prompting him to finally man up and put on a suit again to join them, leaving Pansy alone
in the truck.
Back to Johnson and Tyler, they begin to run when they're found by more alien beasts, and
all the fighting and shooting they do against them cause the buildings around them to start
to crumble.
With the help of their injectors, they manage to jump over the falling debris and reach
Connor on the ground, but at that moment, a few cars begin to fall.
Johnson pushes Tyler out of the way and they're left hanging off an edge as another car falls
on top of Connor, trapping him under it.
Tyler and Johnson rush back to the surface to move the car away from their friend, only
to be ambushed by another alien.
Luckily Skunk arrives just in time to kill the beast and take the team away with him,
opening an escape route through the fallen buildings by using his special weapon.
The group makes it back to the truck safely and Connor connects the robot head to his
computer to confirm there was foul play.
Tyler wants to blame Tam, but Johnson immediately points out Sean Lee was the one that didn't
want to lose the business of building domes.
Connor follows the signals on the robot and confirms it was indeed Lee, so Johnson calls
him to tell him off, but Sean Lee doesn't care.
He's determined to pull off Plan B to destroy Pandora and its air purifier, thus he cuts
off their communications again and sends his robots after them.
Tam realizes they've lost contact with the team and announces that if they can't communicate
in thirty minutes, they'll kick off Plan B. Skunk drives as fast as he can toward the
location of the pistil, but the first robot manages to find them anyway and opens fire
as it chases them on the highway.
The team shoots back, but the bullets aren't enough to hurt it, and soon two smaller robots
also find them and jump on top of the truck.
Skunk decides to get risky and run over the first robot with the truck, this causes enough
damage to its armor for the others to finally shoot it for good.
Next, Tyler jumps on the roof to kick one of the robots off, but this only allows it
to fall into the back door and drop a grenade inside the truck.
Skunk tells Pansy to grab it and throw it out the window while Johnson fights the robot
hand-to-hand, which is getting difficult because his suit is running out of battery.
As a fourth robot shows up in the front of the truck, Tyler manages to rip his robot's
head off, then he immediately jumps back into the truck to kick the enemy attacking Johnson
off the highway bridge.
Then Connor manages to find Skunk's special weapon and shoots off the robot at the front
window.
At that moment, the first robot shows up again and sends a missile after them.
Skunk manages to dodge it, but it still blows up the highway bridge, forcing Skunk to pull
off a very difficult jump that lands them on the other side.
The robot crosses with them by hanging on the truck and tries to make them fall, so
Johnson hands Tyler the gene bullet before jumping on the robot to get it off the truck
and falling into the abyss with it.
The team grieves their friend as they make their way to the pistil, unaware that Johnson
is actually still alive.
At the base, Tam is getting ready to launch Plan B and Sean Lee activates his strongest
robot to go after the team.
Lucy receives that signal too and shows it to Tam to prove Lee is the one behind all
this.
Back to the team, Tyler gives Connor the bullet and sends Pansy to hide while he and Skunk
stay to fight against the huge robot.
Skunk concentrates on returning the fire while Tyler jumps on top of the robot to destroy
the signal jammer, which allows the people at the base to know they're ok and gives Tam
a reason to confront Sean Lee, who still refuses to cancel Plan B. Meanwhile Connor hides Pansy
in a safe place while he activates an explosive that opens a hole in the ground to reach the
pistil.
Skunk's special weapon isn't enough to stop the robot, so he warns Connor to get him to
run away, only for yet another small robot to show up to stop him.
Tyler jumps in just in time to fight this robot while Connor runs to hide with Pansy,
but things get hard for him because his suit's starting to run out of battery too.
As the big robot begins destroying the buildings, Tyler remembers his daughter and the promise
he made to Pansy, which makes him go berserker and destroy the small robot using a car door.
Skunk decides to take a risk and waits for the big robot to be close enough to hit it
on its weak spot with his special weapon, effectively destroying it.
At that moment, the second storm arrives and Pandora's vines begin growing all over the
place.
The second Orca is flying by to launch Plan B, but Tam chooses to disobey Lee and cancels
it.
Tyler is starting to think they lost Pansy to the destruction caused by the robots, by
Johnson suddenly shows up with the girl and the bullet he saved from Connor.
Afterward, Johnson enters Pandora's pistil, which is surrounded by eggs and more of those
bug-like aliens.
Johnson hurries to throw the bullet at Pandora, instantly neutralizing all the creatures and
the growth right before the vines reach the settlement area.
Pandora has been defeated, and everyone at the base celebrates they'll be able to purify
the air soon.
Tam gets ready to arrest Sean Lee, but on her way to his office, she hears a gunshot.
It turns out Sean Lee preferred to end things rather than live without his precious Skynet.
A week later, society is beginning to move on and rebuild, and Tyler accepts a mission
to travel to the Moon to identify the signal coming from there.