Quantum Leap

"Theorizing that one could time-travel within his own lifetime, Dr. Sam Beckett stepped into the Quantum Leap accelerator...and vanished. He awoke 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!"

"It all started when a time-travel experiment I was conducting went...a little ca-ca. In the blink of a cosmic clock, I went from quantum physicist...to Air Force test pilot, which could have been fun — if I knew how to fly. Fortunately, I had help: An observer from the project, named Al. Unfortunately, Als a hologram. So, all he can lend is moral support. Anyway, here I am — bouncing around time, putting things right which once went wrong. A sort of...time-traveling Lone Ranger, with Al as my Tonto; and I dont even need a mask. Oh, boy..."