Winnie the Pooh (voice of JIM CUMMINGS) and his friends Tigger (voice JIM CUMMINGS), Rabbit (voice of KEN SANSOM) and Eeyore (voice of PETER CULLEN) are trying to pull off an elaborate plan to extract honey from a beehive. Their other friend, the diminutive Piglet (voice of JOHN FIEDLER), wants to help, but the others see him as too little for their big task.
Despite him saving the day and helping them succeed, they don't recognize his contributions. Accordingly, he wanders off, wishing they'd need his help someday. They then suddenly realize he's gone and thus set off to find him. To do so, they use his scrapbook of memories as something of a road map that they hope will lead them to him.
Along the way, they remember their various escapades and encounters with the like of Christopher Robin (voice of TOM WHEATLEY), Kanga (voice of KATH SOUCIE) the kangaroo and her little one, Roo (voice of NIKITA HOPKINS), and come to realize that Piglet has been a big part of their lives.