The Deadly Games of Gamma 6 Lost in Space : Season 2 Episode 8
Not Rated CBS 1h 00m int(0)
Aired: November 2nd, 1966 @ 12:00 AM EST on CBS
When a troope of Galactic Gladiators arrive on the planet, they challenge Professor Robinson to a duel, which will be aired all of the galaxy. John declines saying he isn't interested in physical combat. Dr Smith takes up the offer when he makes a deal that if he wins, he will be returned to Earth. Unbeknownst to him, if he loses, which is a near-certanty, Earth will be destroyed.