Elmo and Tango are playing fetch in the dog park, and when Abby comes to play with Elmo and Tango she sets her wand down to throw the stick, but when she turns around, the wand is gone.

While Elmo is drawing a picture of Tango some leaves blow into Tango's fur; Elmo puts the drawing down to remove the leaves, and the drawing is gone; Elmo and Tango have to sniff out the mystery of the missing drawing.

Elmo and Tango help out in Abby's community garden, when suddenly Abby's cricket friend Chirpy goes missing and must be found.

Grover delivers mail, finds unlabeled package containing large wheel; Elmo and Tango check Cookie Monster's food truck and Abby's wheelbarrow to solve mystery.

Elmo and Tango help pretend-pirate Grover locate Barkbeard's lost treasure, which is buried under something shaped like a triangle.

#6: イヌの公園で運動をするタンゴ。友達のジギーも一緒だ。エルモはジギーの赤いボールを投げるが、突然ボールがなくなってしまう。すぐに捜査を開始したエルモとタンゴは、丸くて赤い物が茂みにあることに気づくが...。