Sam leaps into the body of Dr. Gerald Bryant, an English professor at an Ohio college. It is apparent that he is there to prevent Bryant, a boozing middle-aged lecherous man, from marrying one of his students, Jamie Lee. He is distracted however when he realizes that his one true love, Donna - the woman who will leave him standing at the altar 12 years into the future - is also a student there. Knowing what will happen in the future, Sam concludes that it is something in Donna's childhood that keeps her from being able to commit to a relationship and sets about rectifying the situation.
—garykmcd