Awakened by a rumbling that could only be made by the much-feared Heffalump, the Hundred Acre Wood crew sets forth to catch the dreaded creature. Disregarded as too young to partake in such a dangerous expedition, little Roo opts to search on his own--with far greater success than his friends. But in meeting a young, playful Heffalump named Lumpy, Roo quickly discovers that Heffalumps are nothing like the creatures of the ominous stories heâ™s been told, and that the creature is equally afraid of his silly pals. Roo and Lumpy strike up a sweet friendship and work together to dispel the unfounded fears of their respective friends and families.