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 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 the body of a 16-year-old boy and finds himself among a group of outcast teens on the run. Ben relies on determination to try and guide himself and Addison to safety, all 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 to kill 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 that kills 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 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.

Ben’s next leap 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.

Ben finds himself behind the wheel of a speeding stock car in 1976, but a terrifying threat from the future could sabotage the leap. Ben and the team risk everything to complete the mission.