Penny meets a terrific new guy, Pete (guest star Nick Zano, "2 Broke Girls," "90210"), but her frantic attempt to hide the fact that she's wearing a prescription helmet because of her concussion really limits their potential romance; Jane, as always, tries too hard to break into the "boys' club" at the car dealership and enlists Brad to be her "trophy wife"; and Max and Dave's fist bump issues bring back painful childhood memories.