While attending Maggie's first birthday party, Grampa falls for Marge's mother Jackie. Grampa and Jackie start dating, but he is soon pushed aside in favor of Mr. Burns. Burns and Jackie are soon engaged to be married, much to the chagrin of Marge and Smithers. Grampa crashes the wedding and tries to get Jackie back, but she decides that she doesn't want to be married. Meanwhile, Bart steals Homer's credit card to buy a piece of Itchy and Scratchy memorabilia that turns out to be a rip-off.