Episode Title:
Big Sister Sam - Perfect Chemistry.
Episode Description:
Big Sister Sam: Patrick's older sister Sam comes to visit Patrick. Squidward has a feud with Sam, and the two go back and forth fighting.
Perfect Chemistry: Plankton tries to use Sandy's new invention in an attempt to steal the Krabby Patty formula (without her knowing). However, SpongeBob becomes jealous when he believes there is a bond between their love of science.
