David Spade, Wendi McLendon-Covey Photo

From: Photo Flash: RULES OF ENGAGEMENT's 'Cats & Dogs'

On RULES OF ENGAGEMENT's upcoming episode, titled 'Cats and Dogs,' when Liz decides to have a baby, she turns to Russell as the last resort. Meanwhile, Jeff's advice to Timmy to act like an alpha dog to attract a co-worker back fires, on Monday, Feb. 18 (8:30-9:00 PM, ET/PT) on CBS.