A bulldog named Spike and his admirer, a tinier dog named Chester, set their eyes on roughing up a cat. They find Sylvester and chase him all the way to the junkyard. A black panther that escaped from the zoo also happens to be hiding there. Every time that Spike attempts to go into the junkyard the panther attacks him, which he mistakenly thinks is Sylvester. Chester doesn't seem to have a problem destroying Sylvester, which makes Spike think that Chester is tougher than he is, despite the size difference.