Waldo Binny's sister, Mrs. Lindsey, knocks on Riley door looking for her brother. She wants Waldo to babysit her son, Drake, for the weekend but Waldo is hiding because he knows his little nephew is a monster. Besides, Waldo has a big date tonight with his new love, Millicent. Mrs. Lindsey leaves Drake in Riley's care but now no one wants responsibility to babysit the difficult child.