Bon blandes ved et uhell inn i en av Tidspatruljens saker og må hjelpe Agent Ream med å redde uskyldige liv i fortiden – samtidig som han får se historien utfolde seg.
It's been nearly 30 years since Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished. Now, a new team, led by physicist Ben Song, has been assembled to restart the project in hope of understanding the mysteries behind the machine and the man who created it. Everything changes, however, when Ben makes an unauthorized leap into the past, leaving the team behind to solve the mystery of why he did it.