The beaver brother's sisters are left in their care for the weekend, in which Norbert and Daggett attempt to vie for the affection of the two girls. However, their competition soon causes the girls to be placed in harm's way.
- This episode reveals that Mr. Beaver's first name is Leonard.
- This episode features Mitchell Schauer's real-life daughters, Stacy and Chelsea, who provided the voices for Norb and Dag's younger sisters.
- The episode title is a play-on the phrase "if you insist."
|The image gallery for If You In-Sisters may be viewed here.|
- Nick Bakay as Norbert
- Richard Horvitz as Daggett
- Stacy Schauer as Stacy
- Chelsea Schauer as Chelsea
- Marcia Wallace as Mom
- Lorin Dreyfuss as Dad
"The Day the World Got Really Screwed Up!"