Fireman Zachary finds a stray cat that seems to take a liking to him. When he finds out that the cats owner is dead he takes care of him until he can find him a permanent home. When Zachary is out to buy cat food he meets Marilee, a veterinary student, who gives him advice on what food to get. Their paths crosses on several occasions while Marilee first looses her extra job at a pet store (at the hands of Zachary's girlfriend) and then her apartment (when the land lord finds she houses a cat). Zachary who feels guilty over her loosing her job offers Marylee to stay in a house that he's currently restoring to flip. While living there it's not only their cats who finds each other.

When Roger (a Robin Hood-esque, stray dog) and Belle (an elegant yet spoilt pet cat) are thrown together amidst the chaos of a robot take-over of their home city, they must push all their preconceptions aside in order to survive, as they embark on a high-stakes, action-packed adventure.

Gwen the Cat and Roger the Dog are secret agents who covertly protect and save the world without humans ever finding out. Their partnership is due to the Great Truce, which has stopped dog and cat hostility for a decade. But the long-standing peace is threatened when a supervillain parrot discovers a way to manipulate wireless frequencies that only dogs and cats can hear. Will the heroes be able to stop the foul fowl, or will he cause a cat-a-strophe between the species?