Best Frenemies: A new Kelp Smoothie chain is opening up all over Bikini Bottom. The chain’s smoothies are so delicious that soon everyone in town can be seen drinking one. But now that customers already have their smoothie, they don’t need to buy a beverage with their Krusty Krab order. This could hurt Mr. Krabs’ profits, and if there’s one thing he can’t stand, it’s losing money. So Mr. Krabs forms an unlikely alliance with another member of the food service industry, Plankton, and together the two work to infiltrate the Smoothie shop and uncover it’s secrets.