The BEST episodes of Lost in Space
Every episode of Lost in Space ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Lost in Space!
A space colony family struggles to survive when a spy/accidental stowaway throws their ship hopelessly off course.
#1 - There Were Giants in the Earth
Season 1 - Episode 4 - Aired 10/6/1965
The Robinsons discover strange forms of life where they have established a self-sustaining community.
#2 - Island in the Sky
Season 1 - Episode 3 - Aired 9/29/1965
John descends from the orbiting spaceship to explore a planet that the Robinson's are planning to land on.
#3 - Follow the Leader
Season 1 - Episode 29 - Aired 4/27/1966
John falls into a cave containing a centuries-old mummy, whose spirit possesses John’s body.
#4 - The Hungry Sea
Season 1 - Episode 5 - Aired 10/13/1965
An earthquake threatens to seal the cave where Don, Judy, Will, and Penny are trapped.
#5 - The Sky is Falling
Season 1 - Episode 10 - Aired 11/17/1965
The Robinsons encounter a family of crablike visitors who are far from friendly.
#6 - War of the Robots
Season 1 - Episode 20 - Aired 2/9/1966
Will finds a rusted, more capable robot, but the Robinsons’ own robot warns him against rebuilding the device.
#7 - The Anti-Matter Man
Season 3 - Episode 15 - Aired 12/27/1967
Will and the robot try to rescue the kidnapped Prof. Robinson in a macabre world of orange grass, polka-dotted leaves, and animated rocks.
#8 - Wish Upon a Star
Season 1 - Episode 11 - Aired 11/24/1965
Will and Dr. Smith discover a device that transforms wishes into realities.
#9 - The Challenge
Season 1 - Episode 22 - Aired 3/2/1966
The Robinsons encounter a militant boy who is determined to prove his superiority over the earthlings.
#10 - My Friend, Mr. Nobody
Season 1 - Episode 7 - Aired 10/27/1965
Penny discovers a deep cave inhabited by an invisible but seemingly friendly voice.
#11 - The Keeper (1)
Season 1 - Episode 16 - Aired 1/12/1966
The castaways’ planet is visited by a being traveling the universe to collect creatures—two of every kind.
#12 - The Keeper (2)
Season 1 - Episode 17 - Aired 1/19/1966
The Robinsons must turn Penny and Will over or face death.
#13 - Invaders from the Fifth Dimension
Season 1 - Episode 8 - Aired 11/3/1965
The travelers are menaced by glowing creatures who are looking for a humanoid brain.
#14 - Visit to a Hostile Planet
Season 3 - Episode 2 - Aired 9/13/1967
A time warp transports the travelers to a hostile planet – Earth as it was in 1947.
#15 - The Oasis
Season 1 - Episode 9 - Aired 11/10/1965
The Robinsons face dangers on strange terrain, where water is running low and the heat is getting more intense.
#16 - Welcome Stranger
Season 1 - Episode 6 - Aired 10/20/1965
The Robinsons are visited by a long-lost astronaut, who agrees to help their children return to Earth.
#17 - Space Creature
Season 3 - Episode 10 - Aired 11/15/1967
A blue mist causes the travelers to disappear one by one until only Will is left.
#18 - One of Our Dogs is Missing
Season 1 - Episode 13 - Aired 12/8/1965
Dr. Smith and the women discover that their spaceship has been looted.
#19 - The Sky Pirate
Season 1 - Episode 18 - Aired 1/26/1966
The Robinsons meet a space traveling Earth man, Alonzo P. Tucker, who was abducted by aliens in 1876.
#20 - The Magic Mirror
Season 1 - Episode 21 - Aired 2/16/1966
Penny discovers an extraordinary mirror which reflects a world that does not exist.
#21 - Return from Outer Space
Season 1 - Episode 15 - Aired 12/29/1965
Will disobeys John’s orders to stay away from the matter-transfer unit and is transported back to Earth.
#22 - Blast Off into Space
Season 2 - Episode 1 - Aired 9/16/1966
Dr Smith and Will befriend an old miner named Nerim. After a series of earthquakes indicates that the planet is breaking up, Dr Smith tries to convince them that it is merely the effects of mining, and no harm will come to the planet. John informs him that he is wrong and that the Robinson family will be departing within the day. It is a race against time to escape the crumbling planet.
#23 - Target Earth
Season 3 - Episode 16 - Aired 1/3/1968
Will tries to brew dissension among shapeless aliens who plan to conquer Earth.
#24 - Trip Through the Robot
Season 2 - Episode 26 - Aired 3/22/1967
Will and Dr. Smith try to repair the robot, which has grown to the size of a house.
#25 - Attack of the Monster Plants
Season 1 - Episode 14 - Aired 12/15/1965
Plants grow to huge proportions and Smith schemes to steal the canisters containing the spaceship’s fuel supply.