Cooper errors when he doesn't give Barry and Neil credit for the creation of their hangover cure. When Kelly introduces a new friend Ramona, it annoys Leslie, plus she runs her own hangover business. She sabotages the boy's enterprise.
As Barry's Grandmother's Hangover Cure gains momentum in the marketplace, Cooper is getting all the credit, which leaves Barry and Neil frustrated. But when a rival CEO attempts to snatch the hangover cure crown away from them, the gang will have to band together to retain it.