Carl Winslow needs to get in shape, so the police chief agrees to let him use his new, spiffy, voice-activated treadmill at the precinct's workout room. The treadmill won't let strangers use it for some dumb reason, so Carl has to yell a password before the treadmill will start. The chief tells him the password and then goes off somewhere else. Carl climbs onto the treadmill and says the password, "STALLION." Suddenly, a sinister recorded voice cackles, "Stallion, you old fool! I'll never forget how you ended my perfect life of crime! As an act of revenge, I have rigged this treadmill with a powerful bomb! The moment you stop running, the bomb will EXPLODE!! Ha ha ha!" Another policeman comes in and Carl, running frantically, gasps out his situation. To make matters worse the treadmill is steadily increasing in speed. The other guy tries to give Carl a break by stepping on the treadmill himself, but gets a cramp from not properly stretching first, and Carl barely gets back on and stops it from blowing up. So the other cop takes the cover off the treadmill's engine and finds the bomb. He must cut one wire--the red one, the blue one, or the yellow one. He and Carl go through this idiotic superstitious rationale to decide; something involving Carl repeatedly saying "Red, we're dead, blue, we're goo, yellow, we're Jell-O." The guy cuts a wire, Carl jumps off the treadmill, and instead of running they crouch onto the floor waiting for the big boom. It doesn't happen because he cut the right wire, and the studio audience cheers. That's right, Speed was ripping off Family Matters.