This episode continues on the same day the previous one ended at. Flower's pups are left vulnerable underground when Youssarian abandons his babysitting duty. The rest of the Whiskers gets into a fight with a rival gang upon discovering that a piece of a land close to the watering hole has been heavily scent-marked.
Roman Polanski conceived this film several years before he actually made it. He had hoped to cast Jack Nicholson as Captain Red, and himself as The Frog. As of 2002 the ship "Neptune" from the movie is anchored in the harbor of the Italian city of Genoa (near the "Molo Vecchio"). It has been made a museum and can be visited.