"Eeyore's Dark Cloud" is the second segment of the sixtieth episode of My Friends Tigger & Pooh.
Eeyore has always been a gloomy fellow and lately his gloominess has been such that a dark cloud has taken to following him around. Then, the cloud goes away and Eeyore calls the Super Sleuths to get it back. The Sleuths realize that the dark cloud has gone away because Eeyore cheered up by rolling in some clover, but Eeyore has become rather attached to his dark cloud and wants it back, even though it normally hovers only over those who are sad. The Super Sleuths thus begin a quest to find the dark cloud, but discover that it's hard to catch do to the ever-shifting moods of their friends.