Five untrained kids are accidentally sent into orbit when an AI-controlled spacecraft launches prematurely. The group must take control of the ship, and work as astronauts when they face a harrowing emergency onboard.

After a small toy clogs the toilet and leaves only one working bathroom, the kids band together on a chaotic mission to dislodge the toy. On Earth, tempers flare between the parents while Matilda's inventor devises a bold plan to hijack the AI.

Mission Control uploads a virus onto the Odyssey in an attempt to take control. Matilda fights back by shutting everything down. Now floating in darkness with the very real threat of death, the true vulnerabilities of the kids comes to light.

A small hole in the ship threatening the oxygen supply can only be repaired from the outside, forcing Martin to become the first kid to ever attempt a spacewalk.

When crew morale is at an all-time low with four of the kids, Elliot takes it upon himself to rally the group with a team-building exercise. Using a high-tech, super advanced camera they find onboard, they kids decide to make a movie: a space movie.