When Mr. and Mrs. Peabody invite a guest to dinner, Maybelle the cockroach, who lives under their refrigerator, ignores the warnings of Henry the flea to be sensible and ends up "splashing" into a big adventure.

Maybelle the cockroach is tired of all the rules she must follow to safely get food from Mr. and Mrs. Peabody's kitchen, but when Bernice, an ant with a head cold, insists on helping out, the situation only gets worse.