Tim Allen transforms from family dad to family dog and back again in this fresh update of the Disney comedy classic "The Shaggy Dog." It all begins when workaholic Deputy D.A. Dave Douglas (Allen) takes a case involving an animal laboratory — one that will take him away yet again from his wife (Kristin Davis) and kids (Zena Grey and Spencer Breslin), who already yearn for his attention. But when Dave is accidentally infected with a top secret genetic-mutation serum, everything he thought he knew about being himself and his family changes.  With his newly perked-up ears and his front-row seat on the household carpet, Dave is able to gain a whole new perspective into his family's secrets and dreams.