A new team assembles to restart the Quantum Leap project. Lead physicist Ben Song takes an unauthorized leap into 1985 as the team scrambles to figure out what happened and how to get him back.

Ben finds himself headed into orbit aboard the Space Shuttle Atlantis in 1995. Addison confides to Ian about a discovery and finds herself at odds with Magic and Jenn.

Ben leaps to flashy 1970s Las Vegas and into the body of promising young boxer Danny Hill on the eve of a big title fight. Ben and Addison must help Danny win the fight or lose everything. Magic, Ian and Jenn dig into Ben's past to uncover the truth.

Ben leaps to 1980s Los Angeles and into the body of Eva Sandoval, a no-nonsense bounty hunter in the midst of securing an elusive target. Ben remembers more about his own life.

Ben is transported back to 1898 and the rustic, frontier town of Salvation, where he must take on a deadly outlaw. Magic, Jenn and Ian face a new threat when a curious senator shows up at headquarters asking questions about the Quantum Leap program.

Ben and Addison find themselves in San Francisco during the historic 1989 earthquake. As the city continues to crumble with aftershocks, Ben must try to mend a family in chaos as Jenn and Ian search for clues to an unsettling mystery.

Ben leaps into a priest who has been called to assist a family in crisis on Halloween night; as he delves into mysterious and inexplicable events, he's forced to muster all his resources as a scientist before time runs out.

Ben leaps into a 16-year-old boy's body and finds himself among a group of outcast teens on the run. Ben relies on determination to guide himself and Addison to safety, leading to a shocking revelation as a significant piece of his memory returns.

Ben lands in 1979 Chicago as Jack Armstrong, a devoted security guard to talented pop singer Carly Farmer. During Carly's prep for a concert, it quickly becomes clear her life is in danger and Ben must determine who is trying tohug her and why.

Ben leaps into Alexandra Tomkinson, a medical resident in a Seattle hospital. As victims from a train crash pour into the ER, Addison reveals Ben's complicated mission, he must go up against hospital bosses to save lives and Alexandra's career.

When Ben leaps into one of five people in an elevator at a 1962 nuclear reactor, he must figure which one triggers a bomb thathugs them all. Each time the bomb goes off, he leaps into another one of them an hour earlier, resetting the scene.

Ben finds himself in 2012 in the midst of the Mendéz family as they help their transgender daughter, Gia, who dreams of playing on her high school basketball team. Magic and Jenn discover another piece of the puzzle of why Ben leapt in the first place.

When Ben leaps into an Indian family to try to prevent their beloved family restaurant from burning down, he finds an emotional connection with their matriarch through memories of his own. Magic and Jenn share a surprising revelation with Ian.

When Ben leaps onto a naval battleship during war games in 1989, he must not only navigate a dangerous rescue mission but also contend with his commanding officer, XO Alexander Augustine, otherwise known as Addison's father.

When Ben leaps into a harried public defender, he must keep an innocent teenager accused of cuddle out of prison for life. In an unexpected turn of events, Jenn puts her legal expertise to the test as she steps in as the hologram on this complicated leap.

When Ben lands in a 1950s psychiatric institution, he must engineer a daring escape for a young woman unjustly committed by her husband. Meanwhile, the team is shocked to learn the identity of a mole in Quantum headquarters.

When Ben leaps aboard a 1970s passenger jet as a flight attendant, he must outwit its hijackers before it mysteriously crashes into the Atlantic, and worse, he has to do it all without Ziggy's help.

Ben's final leap of the season takes him closer to home than he ever expected. The team faces the ultimate showdown with Leaper X as they battle for the future of the Quantum Leap project and their lives.