My Friends Tigger & Pooh S01 E52 Doggone Buster

When Darby briefly leaves Buster alone, he ends up joining Roo and Lumpy on an adventure to their fort. Since they didn't tell anyone where they were going, Darby ends up thinking that Buster is lost. The Super Sleuths are soon on the case, trying to track down just where the little dog has gone.