John Tucker—a gunslinging cop in future Mobile, Alabama, played by David Carradine—is
visited by thirty-year-old Billy who’s almost as quick on the draw as John. But—ah,
Grasshopper—just where does the visitor’s prescient knowledge come from, and more to the
point given the ending of the film: Who taught Billy to shoot?
— Michael Main
Tucker: Where’d you learn to shoot like that?
Billy: You might say I learned from the best.
Tucker: And who might that be?
Billy:
You’d never believe me.
1 English variant