Season 2, Episode 16 Nightmare AKA The Delta Effect
First Aired: January 4, 1970
The earthlings suffer terrifying symptoms after being exposed to radiation. Steve: Gary Conway. Andre: Yale Summers. Fitzhugh: Kurt Kasznar. Berger: Torin Thatcher. Mark: Don Matheson. Valerie: Deanna Lund. Dan: Don Marshall. Barry: Stefan Arngrim. Kobick: Kevin Hagen. Betty: Heather Young.
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- Rating: TV-G
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- Premise: Flight insurance is no consolation: Seven travelers to London wind up in a space warp and land on a planet whose inhabitants are 12 times their size. (more)