It's time for Princess Bubblegum's super science BBQ! Will Finn wow the princess with his intelligence, or will his latest scheme blow up like some 4th dimensional bubble? Back in the studio, RoseCat discovers a soapbox upon which to climb, while Mahadopus laments his choice to not go to worm college. Meanwhile, the long suffering Queen Princess Velvet, martyr amongst pets, and patron saint of the unsnacked, demands the immediate release of greens upon her kingdom, but is cruelly ignored as the humans drone on for their longest episode yet!