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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.
Ngày phát sóng đầu tiên : Sep 15, 1965
Ngày phát sóng cuối cùng : Mar 06, 1968
Tập phim : 83 Tập phim
Mùa : 3 Mùa
Thời gian chạy: 60 phút
Studio: CBS
Quốc gia: United States of America