Enredo

An astronaut crash lands on a mysterious planet only to discover he's not alone.

After a catastrophic crash, pilot Mills quickly discovers he's actually stranded on an unknown planet. Now, with only one chance at rescue, Mills must make his way across an unknown terrain riddled with dangerous prehistoric creatures in an epic fight to survive. From the writers of A Quiet Place comes 65, a sci-fi thriller produced by Sam Raimi, Deborah Liebling, Zainab Azizi, Scott Beck and Bryan Woods.—Amazon

With his ship crippled by a violent flurry of meteorites, veteran pilot Mills crash-lands on an uncharted celestial body. As the sole survivor of a long-range, two-year exploratory mission, Mills must summon every last ounce of courage to venture 15 kilometres into the dangerous unknown to locate the escape vessel. However, Mills is an invader, a stranger in a strange land. And as the seasoned officer puts his training to use, fighting tooth and nail to stay alive in the planet's lush jungles crawling with death, a question emerges. In an alien world where the enemy is everywhere, what good is trying to escape?—Nick Riganas

65 million years ago, on the planet Somaris, pilot Mills (Adam Driver) convinces his wife Alya (Nika King) that he should take on a two-year space expedition to earn the money needed to treat their daughter Nevine's (Chloe Coleman) illness. Mills will earn thrice his normal salary for this expedition, and this is money that will pay for Nevine's treatment.

During the journey, his spaceship, the Zoic, is hit by a mass of asteroids (that came up on their route unexpectedly) and crash-lands on an alien planet, which unbeknownst to him, is actually Earth. The ship breaks up as it enters the Earth's atmosphere, and part of it crashes on top of a mountain, while the rest travels further and crashes into a jungle much further ahead. All the passengers were in a Cryogenic induced sleep and Mills was the only being awake as the pilot of the ship. Mills is injured in the crash, and he applies first aid to himself. Mills arms himself before venturing outside his ship to check his surroundings.

With his ship damaged beyond repair, he finds that his passengers have been killed and sends a message into space describing the state of his mission. Mills contemplates suicide until he finds a lone survivor in her Cryogenic pod, a young girl named Koa (Ariana Greenblatt). Mills brings Koa back to the ship. Mills sends a distress beacon for rescue and decides to take care of Koa. However, they have difficulty communicating due to differing languages and a broken translator. Mills surveys the area surrounding the ship and finds skeletons of dinosaurs and steam jet geysers.

Mills later discovers a functioning escape shuttle from the Zoic has landed on top of a mountain, 15 kilometers away. To encourage Koa to follow him, Mills lies about her family being atop the mountain, when in reality they perished in the crash. The pair quickly realize the planet is home to dangerous and aggressive alien creatures, which turn out to be Earth's dinosaurs. During their journey they rescue a small armored dinosaur stuck in a tar pit, which is then killed by a pack of Theropods. Mills falls out of a tree and manages to fight off a pack of Lagosuchus attacking them.

As Mills protects Koa, they begin to bond. Mills has a device that tells them what is safe to eat. Mills finds some poison berries that he stops Koa from eating.

Koa watches several video messages sent by Nevine. The two spend the night in a cave. The two are attacked by a large Quadrupedal Archosaur, though Mills shoots it in the eye, which enrages it, forcing Koa and Mills to retreat further into the cave. An insect gets into Koa's mouth and starts to suffocate her, but Mills finds it in time and extracts the insect. They are pushed deeper into the cave by a T-Rex who attacks them from outside the cave. Mills manages to injure the creature with his gun. Mills hands a few bombs to Koa, just in case she finds herself alone.

They enter a narrow shaft to escape the cave. After a rockfall inside the narrow shaft separates them, Mills is trapped inside the cave, while Koa falls outside the cave system into the open jungle. Koa finds a large dinosaur tooth lying in the jungle, which is also very sharp. She laces the tooth with a paste from the poison berries. Mills is attacked by an Oviraptor and Koa is attacked by a raptor-like creature which she traps in a fallen tree log; she uses bombs Mills had given her to kill the dinosaur.

Mills kills the Oviraptor with his gun and escapes the cave, however he falls into quicksand while searching for Koa. Koa rescues him and they continue up the mountain. However, Mills discovers that a huge asteroid, the same one whose debris his ship crashed into, will strike Earth in less than 12 hours.

The two reach the escape shuttle, but Koa is angry when she discovers that Mills lied to her about her parents. Mills opens up to Koa about losing Nevine, who had died of her illness while he was away and promises to protect her. Upon learning rescue is on the way, the two board the escape shuttle, but the asteroid's debris causes it to fall down the mountain. The shuttle cannot launch as it is in the wrong position and facing upside down.

Mills and Koa manage to fend off a pair of Tyrannosaurus Rex. Mills goes outside the shuttle as he finds a gun lying on the ground, but the gun won't charge, and he has to hide inside the shell of his ship. Koa lures the T-Rexes away from Mills using a projection of Nevine from one of her videos. Mills uses the distraction to shoot down one of the T-Rex, but the other understands the ruse and attacks Koa. Mills charges his gun and shoots the T-Rex dead and saves Koa.

But the same creature they injured earlier at the cave, which turns out to be an enormous quadrupedal Theropod, also attacks. Mills asks Koa to launch the ship and runs away. During the chase Mills finds a large geyser field and manages to lure it to a geyser, but the geyser's water and steam only burns half of its face. As the angered Archosaur is about to kill Mills, he is saved when Koa stabs it in its remaining good eye with a large dinosaur claw that she coated in poison berries earlier, blinding it. The now-blind carnivore then stumbles headfirst into a boiling hot geyser and is killed.

The pair escapes just in time as the asteroids strike Earth, causing a cataclysmic event and the extinction of the dinosaurs. With the pod set to meet up with a rescue vessel, the two relax and fly off into the stars.

In closing titles, the evolution of Earth is shown, at the spot where Mills and Koa left, through an ice age until the present day.