Quantum Leap

(Introduction to every episode)

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.

(At Sam and Al's first meeting)

Dr. Sam Beckett: Who are you?

Rear Admiral Albert "Al" Calavicci: My name is Albert... Albert what I can't tell you because it's restricted. Most of what you'll want to know is restricted so it would be a lot easier if you don't ask a lot of questions.

Dr. Sam Beckett: What are you?

Rear Admiral Albert "Al" Calavicci: That's a question Sam.