Rango is a pet chameleon always on the lookout for action and adventure, except the fake kind, where he directs it and acts in it. After a car accident, he winds up in an old western town called Dirt. What this town needs the most is water, but they also need a hero and a sheriff. The thirsty Rango instantly takes on the role of both and selfishly agrees to take on the case of their missing water. Rango is an ordinary chameleon who accidentally winds up in the town of Dirt, a lawless outpost in the Wild West in desperate need of a new sheriff.