New Orleans cop Burke Basile seeks revenge against his nemeis, an oily attorney named Pinkie Duvall, by stealing his wife. Their duel explodes in the French Quarter during its busiest season, Mardi Gras.
Gaston the alligator goes to New Orleans to celebrate Mardi Gras and joins in the "courir du Mardi Gras", watches floats being made, participates in the Zulu parade, and sees other typical sights.