Quantum Leap poster

TV series

Quantum Leap

1989TV-PG5 seasons8.0 / 10

Oh Boy!

Theorizing that one could time travel within his own lifetime, Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished... He woke to find himself trapped in the past, facing mirror images that were not his own and driven by an unknown force to change history for the better. His only guide on this journey is Al, an observer from his own time, who appears in the form of a hologram that only Sam can see and hear. And so Dr. Beckett finds himself leaping from life to life, striving to put right what once went wrong and hoping each time that his next leap will be the leap home.

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Where to watch in United States

Checked Jul 22, 2026

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Synopsis

Theorizing that one could time travel within his own lifetime, Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished... He woke to find himself trapped in the past, facing mirror images that were not his own and driven by an unknown force to change history for the better. His only guide on this journey is Al, an observer from his own time, who appears in the form of a hologram that only Sam can see and hear. And so Dr. Beckett finds himself leaping from life to life, striving to put right what once went wrong and hoping each time that his next leap will be the leap home.

Season 4 episodes

Choose an episode, then use the watch options above for the show.

← Season 3

Episode 1

The Leap Back

44m7.4 / 10

June 15, 1945: Struck by lightning, Sam and Al find their roles reversed, as Sam returns to the future, and to a long-lost love, while Al leaps back to 1945 to prevent the death of a returning World War II hero and his former girl friend.

Episode credits

Directed by Michael ZinbergWritten by Donald P. BellisarioGuest stars Dennis Wolfberg, Gigi Rice, Amanda Wyss, Mimi Kuzyk, Douglas Roberts, Robert Prescott, Candy Ann Brown, Jeanine Jackson

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Episode 2

Play Ball

45m7.0 / 10

August 6, 1961: A pitcher on a minor league baseball team, Sam must decide if he's there to help a fellow team member, get his host back into the major leagues, or baby-sit the porcine team mascot, all while resisting the amorous advances of the women in his life.

Episode credits

Directed by Joe NapolitanoWritten by Tommy ThompsonGuest stars Maree Cheatham, Casey Sander, Neal McDonough, Don Stroud, Courtney Gebhart, Peter Jason, Royce D. Applegate, Michael Bellisario

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Episode 3

Hurricane

44m7.2 / 10

August 17, 1969: Sam meets Camille, and possibly a killer, when he leaps into a deputy sheriff in a small Mississippi town, lying in the path of a deadly hurricane.

Episode credits

Directed by Michael W. WatkinsWritten by Chris RuppenthalGuest stars Bill Erwin, Tracy Kolis, Marilyn Jones, James Morrison, Barbara Townsend, Richard Grove, Marjorie Lovett, Stephanie Shroyer

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Episode 4

Justice

44m7.8 / 10

May 11, 1965: Sam must don the robe of a Ku Klux Klansman in order to save the life of an ambitious young civil rights leader, who is trying to register black voters.

Episode credits

Directed by Rob BowmanWritten by Toni GraphiaGuest stars Dirk Blocker, Noble Willingham, Lee Weaver, Glenn Morshower, Steve Blackwood, Fran Bennett, Lisa Waltz, Michael Beach

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Episode 5

Permanent Wave

44m7.5 / 10

June 2, 1983: Sam leaps into Frank Bianca, a hairstylist in leather pants, to prevent the death of a young murder witness and his mother.

Episode credits

Directed by Scott BakulaWritten by Beverly BridgesGuest stars Joseph Gordon-Levitt, Harry Groener, Doran Clark, Lela Ivey, Christine Cattell, Stephen Kay, Candi Brough, Randi Brough

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Episode 6

Raped

44m7.5 / 10

June 20, 1980: It's up to Sam to try to bring a rapist to justice when he leaps into the perp's victim, a young woman who may have been unwilling to press charges against the young man - the son of the pillar of the community.

Episode credits

Directed by Michael ZinbergWritten by Beverly BridgesGuest stars Liz Vassey, Aaron Lustig, Eric Bruskotter, Nancy Lenehan, Amy Ryan, Arthur Rosenberg, Penny Peyser, Matthew Sheehan

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Episode 7

The Wrong Stuff

44m7.2 / 10

January 24, 1961: The fates make a monkey out of Sam when he leaps into Bobo, an astro-chimp who must avoid succumbing to the experiments of an Air Force neurologist.

Episode credits

Directed by Joe NapolitanoWritten by Paul BrownGuest stars Caroline Goodall, Peter Murnik, Gary Swanson, Albert Stratton, Kim Robillard

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Episode 8

Dreams

44m7.2 / 10

February 28, 1979: It's more like a nightmare when Sam leaps into a detective, investigating a gruesome murder. He may be next if he doesn't find out who eviscerated the victim and his only hope is the victim's catatonic son and her husband's psychiatrist. The horrific flashbacks he's experiencing don't help matters much either.

Episode credits

Directed by Anita W. AddisonWritten by Deborah PrattGuest stars Alan Scarfe, Joycelyn O'Brien, Bill Marcus, Tim Ahern, Noley Thornton, Michael Patrick Carter, Anthony Pena, Wycliffe Young

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Episode 9

A Single Drop of Rain

44m7.2 / 10

September 7, 1953: A devastating drought will be the ruin of a small town unless Sam, as Billy Beaumont, "purveyor of precipitation and maker of rain," can find a way to make it rain, while keeping his family together in the process.

Episode credits

Directed by Virgil W. VogelWritten by Donald P. Bellisario, Richard C. OkieGuest stars Britt Leach, R.G. Armstrong, Hal Landon Jr., Phyllis Lyons, Patrick Massett, Carl Anthony Payne II, Anne Haney, Lesly Kahn

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Episode 10

Unchained

44m7.5 / 10

November 2, 1956: Sam and a fellow convict named Boone are the defiant ones when Sam has to rescue his companion from a fifteen-year sentence on a chain gang.

Episode credits

Directed by Michael W. WatkinsWritten by Paris QuallesGuest stars Jed Mills, Robert V. Barron, J.C. Quinn, Basil Wallace, Claude Earl Jones, Don Sparks, Mark Kemble

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Episode 11

The Play's the Thing

45m5.5 / 10

September 9, 1969: May meets December when Sam leaps into a young actor in love with an older woman, who is also an aspiring singer. If he can't boost her confidence and help her get her career on track, she will face a "fate worse than death," returning with her son to Cleveland.

Episode credits

Directed by Eric LaneuvilleWritten by Beverly BridgesGuest stars Paul Collins, Deem Bristow, Penny Fuller, Anna Gunn, Craig Richard Nelson, Robert Pine, Will Schaub, Daniel Roebuck

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Episode 12

Running for Honor

45m5.0 / 10

June 11, 1964: As a track star in a Navy college, Sam must prevent the death of his ex- roommate, who was expelled because he was gay, and who is slated to die at the hands of a group of bigoted cadets.

Episode credits

Directed by Bob HulmeWritten by Bobby DuncanGuest stars Sean O'Bryan, John Finn, Stephen Brown, Anthony Palermo, John Roselius, Lisa Lawrence, Jake Price, Roz Witt

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Episode 13

Temptation Eyes

45m7.5 / 10

February 1, 1985: A serial killer stalks San Francisco while Sam as Dillion Powell, a TV reporter, protects a beautiful psychic who's working on the case, from becoming the next victim. The young lady is very clear of sight, as Sam and Al soon discover.

Episode credits

Directed by Christopher HiblerWritten by Paul BrownGuest stars Kent Williams, Tamlyn Tomita, James Handy, Rob LaBelle

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Episode 14

The Last Gunfighter

45m7.5 / 10

November 28, 1957: Sam finds himself in the life of Tyler Meanes, a teller of tall tales who faces death at the hand of an old friend in a shootout at high noon.

Episode credits

Directed by Joe NapolitanoWritten by Chris Ruppenthal, Sam RolfeGuest stars O'Neal Compton, John Anderson, Kenneth Tigar, Susan Isaacs, Sean Baca, Jerry Potter, Bonnie Morgan, Paul Bordman

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Episode 15

A Song for the Soul

45m7.2 / 10

April 7, 1963: As a backup singer in a black, amateur girl group Sam finds between the fifteen year-old lead singer and her father as he attempts to rescue the girl from a sleazy night club owner's clutches.

Episode credits

Directed by Michael W. WatkinsWritten by Deborah PrattGuest stars T'Keyah Crystal Keymáh, Eriq La Salle, Tammy Townsend, Harrison Page, Richard McGregor, G. Smokey Campbell, Tiffany Jameson, Clyde Jones

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Episode 16

Ghost Ship

45m7.6 / 10

August 13, 1956: Flying over the Bermuda Triangle, Sam, as the co-pilot, must prevent the flight from returning to Virginia, to get a seriously ill passenger to a doctor before she dies. Flying through the triangle is riskier than it seems, and Sam, deprived of Al's help when the hologram fades out, must get them through alive.

Episode credits

Directed by Anita W. AddisonWritten by Donald P. Bellisario, Paris QuallesGuest stars Kimberly Foster, Carla Gugino, Scott Hoxby, Kurt Deutsch, Mark McPherson

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Episode 17

Roberto!

44m7.5 / 10

January 27, 1982: Sam, as "Roberto!" is a tabloid talk show host a la Geraldo who, with an asthmatic rival and co-worker, tries to uncover a mystery at a local chemical plant, a mystery, which may prove to be deadly for his co-worker.

Episode credits

Directed by Scott BakulaWritten by Chris RuppenthalGuest stars Delane Matthews, Marcus Giamatti, Barbara Tarbuck, Jerry Hardin, Dennis Fimple, Alan Oppenheimer, Michael Heintzman, Donald Gibb

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Episode 18

It's A Wonderful Leap

44m7.5 / 10

May 10, 1958: Sam finds himself behind the wheel of a New York taxicab, in the life of Max Greenman, a driver striving to win his own tag, a license to drive his own cab. His mission is aided with the help of a woman who claims to be a guardian angel.

Episode credits

Directed by Paul BrownWritten by Paul Brown, Danielle AlexandraGuest stars Jerry Adler, Vaughn Armstrong, Liz Torres, Frank Girardeau, Peter Iacangelo, Robin Frates, Jack Orend, Milt Kogan

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Episode 19

Moments to Live

45m7.5 / 10

May 4, 1985: Sam is a soap opera heart surgeon and the obsession of a love-struck, if somewhat deranged fan. He must escape from the woman and her husband who kidnap him for reproductive purposes

Episode credits

Directed by Joe NapolitanoWritten by Tommy ThompsonGuest stars Matthew Ashford, Frances Bay, Krista Tesreau, Pruitt Taylor Vince, Kathleen Wilhoite, James Gleason, Brian George, Ellen Gerstein

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Episode 20

The Curse of Ptah-Hotep

45m7.5 / 10

March 2, 1957: It's almost as though Sam were on vacation when, as Egyptologist Dale Conway, he gets to read hieroglyphics, search lost tombs, and, of course, visit Egypt. But between an encroaching sandstorm, computer glitches back at the Project, the suspicious deaths of the guides, and a 3000-year-old curse to round things off, Sam has very little time to play in the sand.

Episode credits

Directed by Joe NapolitanoWritten by Chris RuppenthalGuest stars John Kapelos, Lisa Darr, Rodger LaRue, Chaim Jeraffi, Ali Dean

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Episode 21

Stand Up

45m7.2 / 10

April 30, 1959: Sam, as the singing half of a comedy team, soon finds that trying to convince two people that they're truly in love is no laughing matter, especially when one of them is the object of a sleazy casino owner's desire.

Episode credits

Directed by Michael ZinbergWritten by Deborah PrattGuest stars Bob Saget, Amy Yasbeck, Robert Miranda, Tom La Grua, Mark Lonow, Wil Albert, Pete Schrum, Jon Melichar

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Episode 22

A Leap for Lisa

45m8.0 / 10finale

June 25, 1957: Sam leaps into Al Calavicci to prevent the death of his married lover. But when Sam accidentally alters history, and finds out too late about her untimely demise, it could mean the gas chamber for Al and disturbingly a whole new situation at Project Quantum Leap.

Episode credits

Directed by James Whitmore Jr.Written by Donald P. BellisarioGuest stars Charles Rocket, Jeff Corbett, Larry Brandenburg, Jamie Walters, Terry Farrell, Anthony Peck, Roddy McDowall, Steve Carlisle

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Episode information updated Jul 23, 2026

More about Quantum Leap

Cast

Scott BakulaSam Beckett
Dean StockwellAl Calavicci
Dennis WolfbergGooshie
Reni SantoniSgt. Lopez
Laura HarringtonConnie LaMotta
Max WrightDoc Kinman
Elya BaskinMajor Yuri Kosenko
David NewsomTom Beckett

Credits

Created by
Donald P. Bellisario

Production details

Status
Ended
Series type
Scripted
Episodes
96
Original language
English

Networks & production

  • NBCUnited States
  • Universal TelevisionUnited States
  • Belisarius ProductionsUnited States

Themes

alternate timelinechanging historychanging the past or futurehologramtime travel