In the year 1997 the Robinson family take off to colonize Alpha Centauri. A spy from a foreign country AKA Dr. Smith ...

The Jupiter 2 is pulled into a giant alien spaceship where there are advanced bubble-like creatures. While John and D...

Professor Robinson attempts to explore a planet that the Robinson's are planning to land on. His para-jet propulsion...

John discovers that the planet they are on will travel further from the sun.In an attempt to survive the Robinsons pa...

Professor Robinson discovers that the planets orbit will bring immense heat on the spaceship. With that knowledge the...

Jimmy Hapgood lands on the planet and the Robinsons befriend him. After helping him fix his spaceship the Robinsons ...

Penny "imagines" a new companion, which is a disembodied life force living below the surface. Dr. Smith accidentally...

Luminous aliens capture Dr. Smith and plan to replace their burnt out computer with his brain. Smith bargains with t...

Dr. Smith eats some alien fruit which transforms him into a giant. Convinced it was the Robinsons trying to kill him...

The Robinsons can not understand the language of a visiting family also on the planet. The aliens are called Taurons,...

The Robinson family banish Dr. Smith from the Jupiter 2. He takes refuge in an abandoned spaceship where he finds a ...

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

The women of Lost in Space are featured in their very own episode while the boys are out installing communications eq...

Plants grow to huge proportions and can duplicate any item placed in them - but those items are made of plant materia...

Lost in Space's only Christmas program. Will uses an alien transporter to send himself back to earth. However, many ...

The Keeper, played by Michael Rennie, is a zoo keeper. He wants to take the children and add them to his collection....

The second part of the zookeeper played by Michael Rennie. Rennie turns in a memorable performance as The Keeper. H...

The Robinsons meet a space traveler who turns out to be an Earth man, Alonzo P. Tucker, who was abducted from Punxsut...

Dr. Smith holds a seance to contact his Uncle Thaddeus. Instead a spirit creature is contacted and creates havoc for...

Will and Dr. Smith stumble upon another robot. More capable than their own robot the alien robot works to gain the c...

Penny and Judy stumble upon a mirror. They discover someone is on the otherside. Before they know it they are trans...

An alien boy is sent to Priplanis to validate his prince status. Will is drawn into a battle to the death unbeknowes...

After the entire Robinson food supply is wiped out in a freak storm a trader arrives to trade food for equipment the ...

Dr. Smith is conscripted as the leader of a people from another world. Little does he know that the leaders of these...

The Beverly Hillbillies move to Priplanis. One of the aliens turns into a werewolf at night. The leader is a articu...

In this retelling of "The Midis Touch", Dr. Smith gains the power to turn anything into platinum. Penny is given a g...

The Robinson men discover an underground civilization while exploring the planet. Will wakes a sleeping princess who...

The Intergalactic Delivery Service comes to Priplanus. Once again Dr. Smith seeks transportation and has Will "test ...

John Robinson is possessed by an alien spirit. The alien forces the family to prepare to return to the spirit's home ...