MacGyver

Season 4, Episode 15

Episode Title: The Invisible Killer

Air Date: 1989-04-10

Overview:

MacGyver heads up a trip with four other Phoenix Foundation employees into the wilderness as part of a stress reduction program. After discovering that a prison bus accident has freed several prisoners, the employees begin to question each other's behavior. MacGyver must now figure out which man, if any, is not to be trusted before it's too late.