My Friends Tigger & Pooh (2007)

Season 1: Episode 50

When Piglet finds a large boulder blocking his doorway, he calls for the help of the Super Sleuths. The Sleuths spring to action, but face a small mystery of their own -- Tigger's Sleuth Suit is missing and he's worried he can't solve mysteries without it. As the team tries to solve Piglet's problem, Darby works to convince Tigger that he can still be helpful even without his costume.