Meanwhile, big sister Eddie couldn't care less about that mushy stuff. All she cares about is her sixth-grade science fair project. But when she comes up with a great plan, Josh and Jake Hatford horn in on her project. On the day the plan goes into action, little do the boys know that Eddie has a trick up her sleeve. And with daredevil Caroline's amazing attention-getting stunt, trouble is sure to follow. Get ready, the Malloys and Hatfords are at it again!