In her fourth episode, "Death at Bargain Prices", Mrs. Peel takes an undercover job at a department store. Her uniform for promoting space-age toys is an elaborate leather catsuit plus silver boots, sash and welder's gloves. The suit (minus the silver accessories) became her signature outfit, which she wore primarily for fight scenes in early episodes and in the titles. Some episodes contain a fetishistic undercurrent. In "A Touch of Brimstone", Mrs. Peel dresses in a dominatrix outfit of corset, laced boots and spiked collar to become the "Queen of Sin".