Red alert! Bean's just found out that her parents are leaving her for the afternoon with meanie Nancy, her big sister. What to do? Should Bean sit quietly on the living room couch and obey the rules? Or should Bean make a rope ladder and escape out her window? What a silly question. Bean needs some rope, she needs a hideout, but most of all she needs Ivy. Working together, the two girls learn how to turn a bad babysitter into a great time.