CBS airs the 13th episode of Filmation’s live-action Saturday morning science fiction series Ark II. 
Adam spots a balloon trapped in a tree, with a message attached, printed in Greek. Samuel begins working on a translation while Jonah and Ruth scout ahead in the Roamer, only to have the way back to Ark II blocked by an avalanche. Samuel finishes translating the message and warns his friends that they’re walking into an isolationist village whose population is falling to an infectious disease. The messages, sent by the father of the village’s leader, ask for help from the outside world, something forbidden by the leader’s laws. Even when Jonah promises that the Ark’s advanced medicines could save lives, his help is refused – and then he finds that even he isn’t immune.
teleplay by Peter L. Dixon & Robert Specht
story by Peter L. Dixon
directed by Hollingsworth Morse
music by Yvette Blais & Jeff Michael and Horta-MahanaCast: Terry Lester (Jonah), Jean Marie Hon (Ruth), Jose Flores (Samuel), Guy Stockwell (The Leader), John Beal (Grandfather), Christian Juttner (Ben), Del Monroe (Masked Man), Mel Novak (First Guard), Lou Scheimer (voice of Adam)
Notes: Guy Stockwell (1934-2002) appeared in dozens of TV series and movies, among them Land Of The Giants, Voyagers!, Knight Rider and The Wild, Wild West. He appeared in an episode of Quantum Leap with his younger brother, Dean Stockwell.
LogBook entry by Earl Green