Lost in Space

Season 3

8 episodes 4 seasons

In an epic final season, the Robinsons' survival instincts kick into hyperdrive as they race to reunite and protect Alpha Centauri from a robot invasion.

Release Date

Premiered

Lost in Space Season 3 released on December 1, 2021.

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Episodes

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S03E01 Aired December 01, 2021

Three Little Birds

A year into their mission with the children of the Resolute, Judy, Penny and Will scramble to find the titanium they need to get to Alpha Centauri.

S03E02 Aired December 01, 2021

Contact

While Judy sets out to find Grant Kelly, Penny and Will explore a mysterious tunnel. Light years away, Maureen, John and Don hunt for SAR's remains.

S03E03 Aired December 01, 2021

The New Guy

Scarecrow helps Maureen and John plot an engine heist. Judy returns to camp with new passengers. Will makes a startling discovery in the alien city.

S03E04 Aired December 01, 2021

Nothing Left Behind

As the adults race to destroy all clues to the location of Alpha Centauri, the Robinson kids receive an ominous message from SAR.

S03E05 Aired December 01, 2021

Stuck

After crashing on a boggy planet, Maureen and Judy contend with a massive salivating creature. John and Penny work to free the trapped Robot.

S03E06 Aired December 01, 2021

Final Transmission

The story of Don's run-in with SAR leads the Robinsons to an alarming realization. Will sneaks out on a dangerous solo mission.

S03E07 Aired December 01, 2021

Contingencies on Contingencies

The Robinsons race to get help for Will, warn the other colonists and activate a secret defense system. Vijay tags along with Penny on a risky outing.

S03E08 Aired December 01, 2021

Trust

As the battle for Alpha Centauri unfolds, the Robinsons and their friends risk everything to restore peace and pave the way for a better future.