On their way to settle on a new human colony the Robinson family crash-lands in an unpopulated wilderness, where they must forge new alliances and work together to survive in a dangerous alien environment.
The Robinsons and Jupiter 2 are stranded on a mysterious ocean planet without the Robot, and must find a way back to the Resolute to reunite with the other colonists en route to Alpha Centauri.
While the Robinsons fight to reunite with their children, Judy, Penny, Will, and the Robot must lead the 97 young Colonists in a harrowing evacuation from a mysterious planet – but not before secrets are unearthed that will change their lives forever.