Episode 1
Condemned of Space
September 6, 1967
Episode 2
Visit to a Hostile Planet
September 13, 1967
Episode 3
Kidnapped in Space
September 9, 1967
Episode 4
Hunter's Moon
September 27, 1967
Episode 5
The Space Primevals
October 4, 1967
Episode 6
Space Destructors
October 11, 1967
Episode 7
The Haunted Lighthouse
October 18, 1967
Episode 8
Flight into the Future
October 25, 1967
Episode 9
Collision of Planets
November 8, 1967
Episode 10
Space Creature
November 15, 1967
Episode 11
Deadliest of the Species
November 22, 1967
Episode 12
A Day at the Zoo
November 29, 1967
Episode 13
Two Weeks in Space
December 13, 1967
Episode 14
Castles in Space
December 20, 1967
Episode 15
The Anti-Matter Man
December 27, 1967
Episode 16
Target: Earth
January 3, 1968
Episode 17
Princess of Space
January 10, 1968
Episode 18
Time Merchant
January 17, 1968
Episode 19
The Promised Planet
January 24, 1968
Episode 20
Fugitives in Space
January 31, 1968
Episode 21
Space Beauty
February 14, 1968
Episode 22
The Flaming Planet
February 21, 1968
Episode 23
The Great Vegetable Rebellion
February 28, 1968
Episode 24
Junkyard in Space
March 6, 1968
Episode 1
Blast Off into Space
September 16, 1966
Episode 2
Wild Adventure
September 21, 1966
Episode 3
The Ghost Planet
September 28, 1966
Episode 4
Forbidden World
October 5, 1966
Episode 5
Space Circus
October 12, 1966
Episode 6
The Prisoners of Space
October 19, 1966
Episode 7
The Android Machine
October 26, 1966
Episode 8
The Deadly Games of Gamma 6
November 2, 1966
Episode 9
The Thief from Outer Space
November 9, 1966
Episode 10
The Curse of Cousin Smith
November 16, 1966
Episode 11
West of Mars
November 11, 1966
Episode 12
A Visit to Hades
December 7, 1966
Episode 13
The Wreck of the Robot
November 14, 1966
Episode 14
The Dream Monster
December 21, 1966
Episode 15
The Golden Man
December 28, 1966
Episode 16
The Girl From the Green Dimension
January 4, 1967
Episode 17
The Questing Beast
January 11, 1967
Episode 18
The Toymaker
January 25, 1967
Episode 19
Mutiny in Space
February 1, 1967
Episode 20
The Space Vikings
February 8, 1967
Episode 21
Rocket to Earth
February 15, 1967
Episode 22
The Cave of the Wizards
February 22, 1967
Episode 23
Treasure of the Lost Planet
March 1, 1967
Episode 24
Revolt of the Androids
March 8, 1967
Episode 25
The Colonists
March 15, 1967
Episode 26
Trip Through the Robot
March 22, 1967
Episode 27
The Phantom Family
March 29, 1967
Episode 28
The Mechanical Men
April 5, 1967
Episode 29
The Astral Traveler
April 12, 1967
Episode 30
The Galaxy Gift
April 26, 1967
Episode 1
The Reluctant Stowaway
September 15, 1965
Episode 2
The Derelict
September 22, 1965
Episode 3
Island in the Sky
September 29, 1965
Episode 4
There Were Giants in the Earth
October 6, 1965
Episode 5
The Hungry Sea
October 13, 1965
Episode 6
Welcome Stranger
October 20, 1965
Episode 7
My Friend, Mr. Nobody
October 27, 1965
Episode 8
Invaders from the Fifth Dimension
November 3, 1965
Episode 9
The Oasis
November 10, 1965
Episode 10
The Sky Is Falling
November 17, 1965
Episode 11
Wish Upon a Star
November 24, 1965
Episode 12
The Raft
December 1, 1965
Episode 13
One of Our Dogs Is Missing
December 8, 1965
Episode 14
Attack of the Monster Plants
December 15, 1965
Episode 15
Return from Outer Space
December 29, 1965
Episode 16
The Keeper (1)
January 12, 1966
Episode 17
The Keeper (2)
January 19, 1966
Episode 18
The Sky Pirate
January 26, 1966
Episode 19
Ghost in Space
February 2, 1966
Episode 20
War of the Robots
February 9, 1966
Episode 21
The Magic Mirror
February 16, 1966
Episode 22
The Challenge
March 2, 1966
Episode 23
The Space Trader
March 9, 1966
Episode 24
His Majesty Smith
March 16, 1966
Episode 25
The Space Croppers
March 30, 1966
Episode 26
All That Glitters
April 6, 1966
Episode 27
The Lost Civilization
April 13, 1966
Episode 28
A Change of Space
April 20, 1966
Episode 29
Follow the Leader
April 27, 1966