Will is conducting an experiment inside a cave when he encounters a man who claims to be the "Time Merchant," the one who governs time across the universe. This mysterious figure takes Will, Professor Robinson, Smith, and the Robot to his hidden lair. There, Smith utilizes the Time Merchant's time machine to travel back to Earth on the day the Robinsons left, aiming to avoid disrupting the Jupiter II mission and allowing the family to proceed to Alpha Centauri. However, the Time Merchant warns that if Smith chooses not to board the Jupiter II, the ship will remain on its original course and face destruction from an asteroid months after launch. Consequently, Will is sent back to persuade Smith to join the mission as he originally intended.
Show
Lost in Space
Episode
S03E18
Air Date
Jan 17, 1968
Season 3 Episodes
S03E01
Condemned of Space
S03E02
Visit to a Hostile Planet
S03E03
Kidnapped in Space
S03E04
Hunter's Moon
S03E05
The Space Primevals
S03E06
Space Destructors
S03E07
The Haunted Lighthouse
S03E08
Flight into the Future
S03E09
Collision of Planets
S03E10
Space Creature
S03E11
Deadliest of the Species
S03E12
A Day at the Zoo
S03E13
Two Weeks in Space
S03E14
Castles in Space
S03E15
The Anti-Matter Man
S03E16
Target: Earth
S03E17
Princess of Space
S03E18
Time Merchant
S03E19
The Promised Planet
S03E20
Fugitives in Space
S03E21
Space Beauty
S03E22
The Flaming Planet
S03E23
The Great Vegetable Rebellion
S03E24
Junkyard in Space