A blonde guy, a redheaded guy, and a brunette guy are about to be executed by firing squad. But the brunette guy says, "Hey, I've got a plan. Follow my lead."
When he gets dragged up in front of the firing squad, just before they pull the trigger, he yells, "Earthquake!" The firing squad panics and runs away, and the brunette escapes.
Well, the squad gets themselves back together and drags the redheaded guy in front of the firing squad. But he figured out the brunette's plan and tries it too, yelling, "Flood!" The firing squad panics again and he escapes in the confusion.
The blonde guy gets it, too, so when he's dragged in front of the firing squad, just before they pull the trigger, the blonde guy yells, "Fire!"