The Powerpuff Girls revolves around the adventures of Blossom, Bubbles, and Buttercup, three little girls who gained superpowers when they were accidentally created with Chemical X. The plot of a typical episode is some humorous variation of standard superhero and tokusatsu fare, with the girls using their powers to defend their town from villains and giant monsters. In addition, the girls also have to deal with normal issues young children face, such as bed wetting or dependence on a security blanket. Episodes often contain more or less hidden references to older (circa 1950s to 1980s) pop culture.