Plankton has demolished the Chum Bucket! In its place, he has built a Roman coliseum and announces there will be a gladiator show, which means togas, chariots, and ferocious lionfish. And on top of all that, it's free! No one in Bikini Bottom can resist, not even Mr. Krabs! The Bikini Bottom Symphony is accepting submissions for their composition contest, and Squidward is determined to win. He immediately gets to work on his masterpiece, but when SpongeBob and Patrick keep disrupting Squidward's concentration, it looks like they might ruin his chance at musical stardom.