In a city of humanoid animals, a hustling theater impresario's attempt to save his theater with a singing competition becomes grander than he anticipates even as its finalists' find that their lives will never be the same. In a town with no humans, just animals, a koala named Buster Moon realizes he will soon lose his theater if he cannot turn his luck around. He comes up with a plan to host a singing competition, where the winner will receive $100,000. Will this be enough to return his theater to glory?