Dawson Palmer

Following a tense effort to rescue John Robinson from deep space, the Jupiter 2 is drawn inside a massive alien spaceship. There, the family confronts a strange race of bubble creatures.

The Jupiter 2 lands on a planet Dr. Smith mistakenly believes is Earth. When Smith is lured out of the ship by cyborgs masquerading as earthlings, the Robot saves him - and the family - in the nick of time.

Young Will Robinson nearly runs off with an intergalactic circus, coaxed by a charismatic entertainer named Marvello who believes Will has a special talent for ESP.

An evil scientist named Sesmar, realizing the power of human emotions, drains the Robinsons of their feelings and transplants them into his android creation. The family is left helpless, until Don's quick thinking restores them.

A strange, ghost-like presence appears after an explosion in a bog awakens it. Dr. Smith conducts a séance, certain the rampaging ghost is his dead uncle's spirit.

When Dr. Smith and Will discover a magic wish-granting machine, the family becomes intoxicated with greed. But the party ends when a strange alien creature reclaims the magic machine.