Finn's best robot bud, Foggy, comes down with a weird virus while exploring a planet full of dancing robots. But he won't let Finn help him. Foggy only wants to dance the Hokey Pokey with his new robot friends! Now Finn and Explorers Troop 301 have to find a cure before the robots attack. But can Finn also fix his friendship with Foggy? Or will his robot BFF stay on the two-stepping planet forever?