With Jerry off fishing with the President in hopes of wangling a White House appointment the girls get stuck babysitting the president's 11 year old daughter Madison. Problem is that years of putting up with being surrounded by the media and the secret service have turned her into a real brat whenever her father's not around. All of which means the girls are keeping their distance making it easy for a giant robot spider to kidnap her and a mystery man demand a mad scientist be released or else Madison's never coming home!