Grandma Thora Appreciation Day & Fern's Slumber Party

Grandma Thora Appreciation Day: Arthur and D.W. are planning a surprise party to show their appreciation for Grandma Thora. Grandma Thora unexpectedly shows up early when her car breaks down and they must finish their last minute preparations without her noticing.
Fern's Slumber Party: Fern's mother wants her to invite some girls over for a slumber party to which she reluctantly agrees. Everyone thinks Fern is boring and bring their own entertainment, but she later manages to impress them with her detective skills.