Val is dating clean-living author Donna who surprises him with various health foods. Rocky inadvertently proposes to Pat, who he's nicknamed Yum Yum. Rocky tried to break the engagement but her two huge brothers are out to convince him otherwise. Rocky hires Tommy to pose as his son and tells the brothers he's already married. They don't believe him so Val poses as Rocky's grandfather, wearing Oriental garb including a black belt. Pat's brothers Fugi and Shigi know that a black belt wearer cannot lie and when Grandfather Val tells them Rocky is married they believe him. They then ask Val to see his famous Shamaguchi judo hold, which Val turns into a double by knocking both to the floor. Donna shows up with mock hamburger casserole which Val hands to Rocky with orders to burn. The next day Val learns that Fugi and Shigi used the double shamguchi in their latest wrestling match.