[2][3] After saving a cat from a tree as a firefighter in 1957, Sam leaps into Tom McBride (Ron Chabidon), a New York City cop on his honeymoon with his new wife, Diane (Alice Adair).

Sam must help his host's mother (K Callan) accept his new bride, fend off the advances of his ex-girlfriend (Elena Stiteler), and fight off a potentially deadly response from Rusty (Patrick Massett), a racist veteran of World War II.

He must prevent Gloria (Jean Sagal), his host's roommate, from killing herself when her married boyfriend, Samantha's boss Buddy (John Calvin), refuses to divorce his wife.

His apartment neighbour, NYPD Officer Peter O'Shannon (Kevin Skousen), is pulling double duty with crowd control for the mobs of screaming Beatlemaniacs.

Sam must help his host's brother, Joe (James Sutorius), stop blaming his wife, Irene (Terri Hanauer), for their son's death – which is destined to drive her into an affair with Bert Glasserman (Russ Tamblyn), a sleazy author who is secretly using her (and other married women) to write a book.

After saving their marriage, Sam does not leap until he makes Joe and Irene realize how, in their grief, they have shut out their remaining child, 13-year-old Karen (Lindsay Fisher).

Sam is Timothy Mintz (Donald P. Bellisario), a parapsychologist working with Troian Claridge (Deborah Pratt), a young widow who insists that her late husband is haunting her.

Sam leaps into all-American college jock Knut "Wild Thing" Wileton (Jeff Benson), who must prevent anti-war protests from turning violent and resulting in the destruction of the science block and killing a student unexpectedly inside, thus ruining the life of Elisabeth (Stacy Edwards), a young woman opposed to the war.

Sam leaps into Eddie Vega (Corey Smith), an El Camino High School football player being raised by a single father, Manuel (Pepe Serna).

Sam leaps into Buster (Jay Boryea), a bouncer in the middle of an infant kidnapping scheme with Bunny (Julie Brown), a ditsy, compulsive liar as his partner.