Dr. Sam Beckett vanished about 30 years ago when he stepped into the Quantum Leap accelerator. Now, a new team has been recruited, lead by scientist Ben Song (Raymond Lee), to restart the research in the hopes of unraveling the mysteries surrounding the machine and the man who invented it.

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Everything changes, however, when Ben takes an unapproved leap into the past, leaving the crew to figure out why. Throughout his leaps, Ben is accompanied by Addison (Caitlin Bassett), who appears as a hologram that only Ben can see and hear. She’s a seasoned Army veteran who approaches her job with calm precision.

Herbert “Magic” Williams (Ernie Hudson) is in charge of the highly classified operation, and he has to answer to his employers, who will be furious once they discover about the breach of protocol. The rest of the headquarters team comprises Ian Wright (Mason Alexander Park), who directs the Artificial Intelligence section “Ziggy,” and Jenn Chu (Nanrisa Lee), who oversees the project’s digital security.

As Ben jumps from life to life, righting wrongs, it becomes evident that he and the gang are on an exciting trip. However, Addison, Magic, Ian, and Jenn understand that in order to solve the mystery of Ben’s leaps and return him home, they must move quickly or risk losing him forever.