General Parvo builds a successful time machine so then he could stop Prof. Shepherd from creating the Road Rovers. An accident reverts him back to his original form of an alley cat, but the Rovers still have to follow him back to ensure their creation. As with “Hunter’s Heroes” and “The Dog Who Knew Too Much”, this episode’s title featured a play on words, this time a reference to the old phrase ‘raining cats and dogs’.
