
Former scientist Sam Beckett finds himself trapped in time due to an experiment gone awry, leaping into the body of a different person each week. Al Calavicci, at first known only as The Observer, is Sam's holographic adviser -- he provides Sam with some details about his new identity and gives him guidance on how to help the people affected by his presence. But with little memory to help guide him, our hero is forced to bluff his way through many a wacky situation.

Sam becomes a wrestler who must prevent his brother from going down for the count permanently when their title match poses a threat to the man's life.

Sam becomes a college student working in the family bomb shelter business on the eve of the Cuban missile crisis.

Sam becomes a parapsychologist charged with exorcising the spirit of a novelist whose voice torments his widow (Deborah Pratt).

Sam becomes a fraternity brother in 1967 who must stop a revolutionary from bombing a chemistry lab and killing innocent people.