This final installment in the Look Who's Talking trilogy is a combination of Make Room For Daddy and The Lady and the Tramp. In the six years since the original Look Who's Talking, Mikey and Julie are now old enough to speak for themselves, so the producers came up with a new gimmick -- talking dogs. The Ubriacco family adopts two surly dogs, Rocks (the voice of Danny DeVito), a street-smart mongrel, and Daphne (voice of Diane Keaton), a snobbish pure bred poodle. The story kicks in with Christmas rapidly approaching and Molly (Kirstie Alley) out of a job. Because of this, her husband James (John Travolta) must work doubly hard to impress his new boss, Samantha (Lysette Anthony). But Samantha, it seems, has hired James for more than what appears in his job description. Samantha contrives a plan to get James to her cabin in the North Woods on Christmas Eve, where she plans to seduce him. James' family races to rescue him from the snowbound cabin, but when their taxi skids off the snow-covered road, it is left to the primal instincts of Rocks and Daphne to save the day.
~ Paul Brenner, All Movie Guide