
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.

In 1954, Sam becomes a man trying to prevent the shipboard wedding of his ex-wife to a crooked millionaire.

Sam becomes a priest charged with saving his mentor, whose knowledge of a murder makes the latter a target.

As a photographer, Sam must save a model from overdosing on amphetamines from her agent (Susan Anton).

Sam is brought back to Halloween 1964 as a horror novelist who has his own share of scary experiences, including an encounter with the devil.