简介：ThelovablysimpleresidentsofpeacefulKikorikiIslandarethrownkickingandscreamingintobigadventure,whentheirresidentscientistinventsanamazingdevice-ahelmetcalled«theImproverizor»,whichtakespersonalitytraitsfromonepersonandswapsthemwithsomeoneelse's.ButwhenspinelessyoungWallytriestousetheuntesteddevicetocurehiscowardice,heendsupevenmorespineless-bygettingaccidentallybody-switchedwithasquirmylittlecaterpillar...…