Physicist and all-around good guy Sam Beckett rushes his time machine into production—funding is about to be cut!—and as a consequence, he leaps into the life of a USAF test pilot, where Sam and his holographic cohort Al have a moral mission. And after setting things right in that pilot’s life, Sam—“oh, boy”—takes a few moments to win the big baseball game in 1968.

Why would anybody leap into English Professor Gerald Bryant during June 1972? Sam is certain that his mission is to he can reconcile his own future quantum physicist girlfriend with her father so that her fear of commitment won’t cause her to leave Sam at the alter in another twelve years.

Sam leaps into professional boxer Clarence “Kid”Cody in 1974, where he must win his first legitimate fight in a year to save the sisters of St. Mary’s, start a new life with Dixie, and also—if things work out as expected in the Rumble in the Jungle—escape the mob.

Sam leaps into Doc Young, DVM, back in 1956 Lubbock, Texas, where it seems his purpose is to out-rope, out-ride, and out-posthole-dig cowgirl Tess McGill in an effort to win her heart.

Sam does a double leap at one location: First into hitman Frankie LaPalma at the moment when he and Don Geno’s former girlfriend are in the sack together, and then as Don Geno himself.

Upon arriving in an Alabama diner in 1955, Sam sits at the counter and sees an elderly Black man looking back at him from the mirror.

It seeems that the only way Sam can fulfill his mission of stopping 17-year-old Cam Wilson’s older sister from marrying shithead Bob is to race Bob “for pinks” in hopes that Bob will lose his cool and show his true self, but that’ll only work if Sam (as Cam) and his buddy Jill can soup up Cam’s pink mommobile with a blast of nitrous oxide at exactly the right moment of the race.

Sam arrives in 1953 as a private eye who looks like Humphrey Bogart and has to solve the mystery of his partner’s murder while trying to figure out his relationship with his partner’s wife and the eager kid at the newsstand.

Sam pops into newly married Tom McBride (a New York policeman), who is headed to Niagara Falls with his new bride (a budding lawyer and the daughter of a senator). The two of them engage in the usual honeymoon activities—fighting off ex-boyfriend thugs, rolling underneath moving trains, studying for the bar exam—while unbeknownst to Sam, Al is at a Senate committee meeting in Washington, D.C., fighting for the life of Project Quantum Leap. Oh, yes, and it’s now official: Sam and Al believe that God has taken control of the project, although Al refuses to be pinned down as to which god she is.

Sam finds out what it’s like to be a stuntman in a family with broken dynamics and (to him but not Al) in an era with broken music.

In 1953, Sam steps off a bus as a sailor returning home from Japan with—surprise! to Sam and everyone else—a new bride named Machiko.

Sam leaps into the body of executive secretary Samantha Stormer during a time rife with sexual harrassment that hadn’t yet been challenged or even given a name.

Who knew that if Sam leaped into a blind pianist’s body that he’d be able to see with his own eyes and stop a Central Park killer?

Somewhat disoriented Sam—as Howlin’ Chic Howell at a 50’s radio station—must help station owner Rachel Powell defend rock’n’roll from the town elders and mobs of pitchfork-carrying, record-burning hayseeds.