Dream Plankton, who appears normal, obtains a piece of a patty and tries to make a whole patty with his new enlarging ray, but things go wrong when it becomes too big. To stop the patty, Plankton tries to become giant, but he only becomes the size of a normal citizen.
Later, after being chased by the giant patty, he gets back to the Chum Bucket and enlarges again, but this time, he becomes a giant.
Later, Dream Patrick enters the picture and, with the help of Mermaid Man and shrink rays, he shrinks Dream Plankton back to his proper size.
Dream Plankton is destroying the dream version of Bikini Bottom when Dream SpongeBob comes. Dream SpongeBob changes into a pin and deflates the large version of the Dream Plankton to the size of the regular Sheldon Plankton to stop him from killing Dream Gary. In the end, angry citizens confront him and step on him.
His head appears in the dream crowd's heads at the end of the episode, yelling at Dream SpongeBob for ruining his dream.
Dream Plankton appears on a Dream Cloud when SpongeBob tells Mr. Krabs that Plankton's been trying to steal the Krabby Patty Formula for years while holding out a Krabby Patty. Dream Plankton tries to steal the Krabby Patty, before SpongeBob splatters him with a fly swatter.