Season 1 poster

Season 1

29 episodes September 15, 1965

The astronaut family of Dr. John Robinson, accompanied by a pilot and a robot, set out in the year 1997 from an overpopulated Earth in the spaceship Jupiter 2 to travel to a planet circling the star Alpha Centauri. The Jupiter 2 mission is sabotaged by Dr. Zachary Smith (an agent for an unnamed foreign government) who slips aboard the spaceship and reprograms the robot to destroy the ship and crew. However, Smith is trapped aboard, and his excess weight alters the craft's flight path and places it directly in the path of a massive meteor storm. Smith manages to save himself by prematurely reviving the crew from suspended animation. The ship survives, but the damage caused by Smith's earlier sabotage of the robot leaves the crew lost in space. The Jupiter 2 crash-lands on an alien world, later identified by Will as Priplanus, where they spend the rest of the season and survive a host of adventures. Smith remains with the crew and acts as a source of comedic cowardice and villainy, exploiting the eternally forgiving nature of Professor Robinson.

Episodes

1 The Reluctant Stowaway Sep 15, 1965 No ratings 2 The Derelict Sep 22, 1965 No ratings 3 Island in the Sky Sep 29, 1965 No ratings 4 There Were Giants in the Earth Oct 6, 1965 No ratings 5 The Hungry Sea Oct 13, 1965 No ratings 6 Welcome Stranger Oct 20, 1965 No ratings 7 My Friend, Mr. Nobody Oct 27, 1965 No ratings 8 Invaders from the Fifth Dimension Nov 3, 1965 No ratings 9 The Oasis Nov 10, 1965 No ratings 10 The Sky Is Falling Nov 17, 1965 No ratings 11 Wish Upon a Star Nov 24, 1965 No ratings 12 The Raft Dec 1, 1965 No ratings 13 One of Our Dogs Is Missing Dec 8, 1965 No ratings 14 Attack of the Monster Plants Dec 15, 1965 No ratings 15 Return from Outer Space Dec 29, 1965 No ratings 16 The Keeper (1) Jan 12, 1966 No ratings 17 The Keeper (2) Jan 19, 1966 No ratings 18 The Sky Pirate Jan 26, 1966 No ratings 19 Ghost in Space Feb 2, 1966 No ratings 20 War of the Robots Feb 9, 1966 No ratings 21 The Magic Mirror Feb 16, 1966 No ratings 22 The Challenge Mar 2, 1966 No ratings 23 The Space Trader Mar 9, 1966 No ratings 24 His Majesty Smith Mar 16, 1966 No ratings 25 The Space Croppers Mar 30, 1966 No ratings 26 All That Glitters Apr 6, 1966 No ratings 27 The Lost Civilization Apr 13, 1966 No ratings 28 A Change of Space Apr 20, 1966 No ratings 29 Follow the Leader Apr 27, 1966 No ratings