Mission Impawsible by James Patterson

Summer is here and Junior is getting his very own doggy vacation! Junior is left behind when his humans decide to take a trip, so he tells how he survived on a diet of icky vegetables (with no yummy, drool-inducing meat in sight), his super-secret plan to steal delicious hamburgers, and how he and his pooch pals cooked up a grand scheme to break free and get back home.