Tim Allen transforms from family dad to family dog and back again in this update of the Disney comedy. It all begins when workaholic Deputy D.A. Dave Douglas (Allen) takes on 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 all-too-distracted 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. Yet 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. Now, he wants nothing more than to stop fetching and return to fathering -- only first he'll have to stop the evil forces behind the serum.