Seasons & episodes

Preview of the next episode The Flaming Planet.

Preview of the next episode The Great Vegetable Rebellion.

Preview of the next episode Junkyard in Space.

Preview of the first episode of season three Condemned of Space.

Act break transition for commercials.

Blooper for Program Interstitials 21 (Still At It).

Full interview with Bill Mumy in 1995.

Full interview with Jonathan Harris in 1995.

Lost in Space: The Epilogue is a 2015 produced table-read featuring the original cast, written by Bill Mumy to finally bring the Jupiter 2 crew back to Earth. Set 15 years after the series, it follows a stranded, weary Robinson family who find new hope, new family members like Joshua Robinson West, and a way home

S1 · E1The Reluctant Stowaway 1965-09-15 · 51 min＋

In the year 1997 the Robinson family take off to colonize Alpha Centauri. A spy from a foreign country AKA Dr. Smith becomes trapped aboard trying to sabotage the project. The ship is whisked off course and into a meteor storm due to Dr. Smith's extra weight upsetting the navigational computers. Smith desperately tries to save himself by reviving the crew. The result: the Robinson family becomes lost in space.

S1 · E2The Derelict 1965-09-22 · 51 min＋

The Jupiter 2 is pulled into a giant alien spaceship where there are advanced bubble-like creatures. While John and Don look for maps and equipment Dr Smith and Will look for trouble.

S1 · E3Island in the Sky 1965-09-29 · 51 min＋

Professor Robinson attempts to explore a planet that the Robinson's are planning to land on. His para-jet propulsion system fails due to sabotage by Dr. Smith. Major West "lands" the Jupiter II, in spite of the fact that Dr. Smith has also sabotaged the propulsion system of the Jupiter II, and the family and Major West rescue Professor Robinson.

S1 · E4There Were Giants in the Earth 1965-10-06 · 51 min＋

John discovers that the planet they are on will travel further from the sun.In an attempt to survive the Robinsons pack up and head south. Dr Smith stays at the Jupiter 2 site while the Robinson family encounter a terrifying cyclops and an ancient deserted city.

S1 · E5The Hungry Sea 1965-10-13 · 51 min＋

Professor Robinson discovers that the planets orbit will bring immense heat on the spaceship. With that knowledge the Robinson's take off in the chariot and head south. However back at the Jupiter two, Dr Smith who stayed behind because he believed them to be lying, realises that the orbit is strange, bringing immense cold followed by extreme heat. He sends the Robot to tell them, and they then attempt to travel back to the Jupiter 2. However in their way is a huge in-land sea which previously had been frozen solid. The immense heat and cold make the vegetation charred. They survive the heat and return to the Jupiter Two where they are most safe.

S1 · E6Welcome Stranger 1965-10-20 · 51 min＋

Jimmy Hapgood lands on the planet and the Robinsons befriend him. After helping him fix his spaceship the Robinsons try to convince him to take Will and Penny back to Earth with him. Dr. Smith tries to get aboard the ship instead and take their place.

S1 · E7My Friend, Mr. Nobody 1965-10-27 · 51 min＋

Penny "imagines" a new companion, which is a disembodied life force living below the surface. Dr. Smith accidentally injures Penny, leading to the creature taking his anger out on the entire planet.

S1 · E8Invaders from the Fifth Dimension 1965-11-03 · 51 min＋

Luminous aliens capture Dr. Smith and plan to replace their burnt out computer with his brain. Smith bargains with them and they attempt to use Will's brain instead.

S1 · E9The Oasis 1965-11-10 · 51 min＋

Dr. Smith eats some alien fruit which transforms him into a giant. Convinced it was the Robinsons trying to kill him, he plots to take them out.

S1 · E10The Sky Is Falling 1965-11-17 · 51 min＋

The Robinsons can not understand the language of a visiting family also on the planet. The aliens are called Taurons, and come to use the planet as a new colony. However Dr. Smith causes problems between the two camps when he panics and draws a gun on the new family. The Taurons end up not liking the planet and want to be alone, so they leave.

S1 · E11Wish Upon a Star 1965-11-24 · 51 min＋

The Robinson family banish Dr. Smith from the Jupiter 2. He takes refuge in an abandoned spaceship where he finds a machine that can materialize anything. In an attempt to get back on the Robinsons good side he gives them the machine which plays on the family's greed.

S1 · E12The Raft 1965-12-01 · 51 min＋

Actually, Will and Dr. Smith went into an elongated orbit and landed right back on the planet, not too far from the Jupiter II.

S1 · E13One of Our Dogs Is Missing 1965-12-08 · 51 min＋

The women of Lost in Space are featured in their very own episode while the boys are out installing communications equipment. Smith is left in charge (boy is that a mistake) and he "cleans" their weapons, but cannot remember how to rebuild the weapons. This leaves the J2 crew defenseless. A creepy creature stalks the Robinson women however they think a small dog is to blame for raids on food and other mischief.

S1 · E14Attack of the Monster Plants 1965-12-15 · 51 min＋

Plants grow to huge proportions and can duplicate any item placed in them - but those items are made of plant material and are useless. John Robinson must use the biggest batch of plant killer he's ever mixed up to stop these things from engulfing the spaceship.

S1 · E15Return from Outer Space 1965-12-29 · 51 min＋

Lost in Space's only Christmas program. Will uses an alien transporter to send himself back to earth. However, many people believe the Robinson family to be dead after hearing the ship went off course. Nobody on Earth believes him, and they lock him up with the intention of sending him to a boys' home. Will escapes the family home he's in, and wanders around these clueless bunch of townspeople, but finds carbon tetrachoride — needed for the food processors on the Jupiter. Eventually he convinces another boy, Davey, to let him out, and let him return to the planet he came from. He returns to Priplanus with this bottle. Of course no one believes his adventures until he produces the bottle, plainly labeled as coming from Earth.