The tub of vanilla ice cream is a normal-sized (for a human) tub of vanilla-flavored ice cream. The tub is purple, and has a brown ice cream cone and a scoop of vanilla ice cream on it, and the tub has the words "vanilla ice cream" written. The ice cream tub's lid is pink.
The tub of vanilla ice cream fell from an unknown location and landed near SpongeBob and Patrick, who confirmed that its contents were ice cream (after tasting it). Soon after, the residents of Bikini Bottom started playing with the tub's contents as if it were snow.
SpongeBob and Patrick ventured inside the tub of vanilla ice cream, where they stumbled upon Pint Bottom and met CreamBob ConePants. He gave SpongeBob and Patrick a tour of Pint Bottom and introduced them to his friends.
SpongeBob and Patrick became hungry, and CreamBob offered them an ice cream cake and an ice cream sandwich, before telling them to check out the ice cream truck. SpongeBob and Patrick then quickly eat the ice cream truck, before preceding to eat the entirety of Pint Bottom.
SpongeBob and Patrick, now fat from eating Pint Bottom and everyone in it, are then helped out of the tub of vanilla ice cream by Sandy and Mr. Krabs.
According to Patrick, the temperature of the inside of the tub is 30 degrees, though it is unknown if this is in Celsius or Fahrenheit.