The gang travels to Las Vegas to watch Marie portray Cher in a lounge act. Trudy loses thousands of dollars, and Jonathan wakes up from a drunken stupor holding a marriage certificate and wearing a wedding ring.
Sam and Trudy hire an au pair to watch Teddy. They do everything they can to sabotage her dream of being a professional singer when it means losing their immaculate apartment. Dan sues Manny when a water pipe in his apartment bursts.