An rat named Remy dreams to become a French boxer despite his family's dreams and the problem of being a rat at a profession. He finds himself ideally situated beneath a restaurant created by his hero, when fate puts Remy from the sewers of Paris. Despite the dangers of being an unlikely - and certainly unwanted - visitor at a French restaurant's kitchen, a hilarious and exciting rat race Paris' realm turns down is so on set into motion by Remy's passion for cooking.