Ten-year-old Teddy Mars seeks to stand apart from his six siblings, none of whom could be called "normal," by earning a listing in the Guinness Book of World Records.

Just like world records, some rules are made to be broken. When Teddy's great-aunt Ursula moves in, she makes rules about everything from juice to The Guinness Book of World Records to being a good big brother. At first, Teddy is excited. Maybe she'll finally end The Destructor's reign of terror! But when Aunt Ursula's newest rule, PIGEONS ARE NOT PETS, puts the neighborhood pigeons in danger, Teddy may have to bend a few rules to save them.