Spongebob Squarepants: It Came from Goo Lagoon (2014)

Spongebob Squarepants: It Came from Goo Lagoon

It's a special episode featuring a threatening giant purple ball of goo. Then, Plankton sabotages SpongeBob's spatula, SpongeBob's deepest secrets are revealed, Patrick wreaks havoc, and SpongeBob goes back to milkshake-making school.