Lost In Space:
Castles in Space
Original Broadcast: 20 December 1967
Trivia note: This episode was banished from the schedule of a Los Angeles television station after protests from the Hispanic community. Guest star Alberto Monte's portrayal of Chavo, an intergalactic desperado, was all of the bad parts of a Mexican stereotype - right down to the serape, guitar and near unintelligible accent.
Don, Judy, Will and Smith are installing a radar tower when they uncover a cryogenic tube with a princess. Soon Chavo arrives with plans to return the lost princess to her home - for a hefty ransom. Will is captured, and Chavo tries to trade Will for the defrosted princess. Don and Smith attempt a rescue while Judy patrols the camp with a big-ass laser rifle.