简介：Mannyhasmovedtoanewschool,andit'snoteasytofitin.Afterwishinghehadmorefriends,MannyfindsamysteriouscollarandputsitonRufus,thefamilydog.Suddenly,Rufusturnsintoaboy!Manny'snotsurewhattodo,soheenrollsRufusinschool.WhentheotherstudentsnoticeRufus'ssillydogantics--chasingsquirrels,eatingwithoututensils,askingforbellyrubs,andcatchingasoccerballwithhismouth--heimmediatelybecomesthemostpopularkidaround.Mannyisjealousofhisnewbestfriendbuteventuallylearnsthatadog'sloyaltytohisowneralwayscomesfirst.…