 Sylvester Cat s new hang-out is an inventor s lab, which is near Tweety Bird s house atop a pole. Guarding Tweety s house is a bulldog named Spike. Sylvester invents all kinds of contraptions including a storm cloud, a robot dog, invisible paint, and a retracting grabber. The bulldog foils all Sylvester s attempts to catch Tweety with these inventions.