Know to be man's best friends, cats and dogs have engaged in a fierce and merciless battle. Now, Mr. Tinkles, a ruthless cat, is plotting intensively to achieve nothing less than world domination. His main target is Professor Brody. The professor is working on a medication that will rid people of their dog hair allergies. Mr. Tinkles strives to get to the substance and have it analyzed. He then means to have it altered so that all humans of the world...

The world's most famous, and Hollywood's most pampered, pooch is separated from his owner and ends up as the mascot of a hapless fire station. There, he helps a boy and his father, a veteran fire chief, turn the station into the city's finest.