Refusing to abandon his father's once-glorious theatre, Buster Moon, a slightly delusional showman, finds himself with his back to the wall. However, is he as hopeless as he seems? Fortunately, in one of those spur-of-the-moment decisions, the visionary's mind gives birth to a simple but fantastic idea to save his business: a singing competition. As a result, every sunny daydreamer in town gets a chance to shine, and as the news of a $100,000 grand prize spreads like wildfire, everything is ready for the ultimate musical showdown. Now, anybody can dream big, including tiny alto saxophonists and heavenly voiced soloists. After all, all creatures, great and small, are welcome to compete in the Moon Theatre.