MacGyver - Season 4 - Eps 15: The Invisible Killer
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.
About MacGyver

Title: MacGyver
First Air Date: 1985-09-29
Last Air Date: 1992-05-21
Status: Ended
Rating: 7.7/10 (from 845 votes)
Language: EN
Seasons: 8
Total Episodes: 139
Network: ABC
Genres: Drama, Action & Adventure, Crime
Production Companies: Paramount Television, Henry Winkler/John Rich Productions, Columbia TriStar Television
Synopsis
He's everyone's favorite action hero... but he's a hero with a difference. Angus MacGyver is a secret agent whose wits are his deadliest weapon. Armed with only a knapsack filled with everyday items he picks up along the way, he improvises his way out of every peril the bad guys throw at him. Making a bomb out of chewing gum? Fixing a speeding car's breaks... while he's riding in it? Using soda pop to cook up tear gas? That's all in a day's adventures for MacGyver. He's part Boy Scout, part genius. And all hero.
Cast

Richard Dean Anderson
Angus MacGyver

Dana Elcar
Pete Thornton