Fireball XL5
S01E02 The Doomed Planet
The Fireball XL5 narrowly avoids a rogue planet that has drifted off its orbit, only to discover it is heading straight for Membrono. After determining that both planets are uninhabited, Steve recalls seeing a flying saucer. When the saucer lands at Venus' home, it draws the XL5 back into action to prevent Membrono from facing imminent destruction.
Season 1 Episodes
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Planet 46
The Doomed Planet
Space Immigrants
Plant Man From Space
Spy in Space
The Sun Temple
XL5 to H2O
Space Pirates
Flying Zodiac
Space Pen
Space Monster
The Last of the Zanadus
Planet of Platonia
The Triads
Wings of Danger
Convict in Space
Space Vacation
Flight to Danger
Prisoner on The Lost Planet
The Forbidden Planet
Robert to the Rescue
Dangerous Cargo
Mystery Of The TA2
Drama At Space City
1875
The Granatoid Tanks
The Robot Freighter Mystery
Whistle for Danger
Trial by Robot
A Day in the Life of a Space General
Invasion Earth
Faster Than Light
The Day the Earth Froze
The Fire Fighters
Space City Special
Ghosts Of Space
Hypnotic Sphere
Sabotage
Space Magnet