November 8, 1965: Though his goal as a Mafia hitman named Frankie is unclear, Sam follows a list of instructions, supplied by Ziggy in an effort to bring Sam back to the Project. These instructions result in the Great East Coast Blackout and, rather than leaping home, Sam finds himself in the life of the Mafia don who's been jealously preventing a romance between Frankie and the don's girlfriend. Sam believes he knows his mission, and publicly announces Frankie's marriage to the girlfriend, putting himself in a position to call a winning Bingo number.
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.
Quantum Leap - Double Identity Synopsis and Schedule