With Clyde finally back from camp, Lincoln has the entire day planned for maximum fun for their last day of summer. However, things go awry when Lincoln accidentally eats some of Lisa's memory-erasing jelly beans.

Lynn's competitive nature has always meant that she struggles in non-competitive settings, like sleepovers. In fact, it's been so long that Lynn's had a successful sleepover, that the family decides to help her host one.