After Gluko stays up all night to binge-watch his favorite TV show, Lennon is determined to get back on the same sleep schedule so they can hang out again.

Lennon brings Gluko to Jellyopolis, so he can refill his jelly. When they arrive, Lennon discovers that Jelly Giants are afraid of solids, and must conceal his identity in order to help Gluko.

When Gluko and Lennon's annoying new neighbors turn out to be Lennon's rival from Mashball Camp, Lennon must confront his past and beat his old nemesis at a sport he swore he'd never play again.