The Great Truce, a complex joint-species surveillance system devised and supervised by cats and dogs to keep the peace when disagreements erupt, has been in place for ten years. However, when a tech-savvy villain hacks into wireless networks to use frequencies only cats and dogs can hear, he manipulates them into war, reigniting the global cat-versus-dog battle. Now, a squad of untrained and untested operatives will have to rely on their animal instincts to bring order and peace to the world's cats and dogs.