(The episode begins with a close-up of the "D" Keychain of Didi's car keys. Outside the playpen, Didi nervously paces the floor.) Didi: "Oh, what did I do with those? Where are they?" (Tommy coos.) Didi: Did I leave them up here? Oh, could they be under here?" (Didi opens a drawer and rummages through it.) Didi: "No. Oh, where are they?" (Didi turns around and sees that Tommy is holding her car keys. She and Lou walk up to him.) Didi: "Tommy, sweetheart!" (Didi takes the car keys from Tommy.) Didi: "How did you get those?" (Tommy coos. Didi groans and walks away.) (Lou crosses his arms in disapproval.)