When they uncover a conspiracy against America and its fundamental freedoms, the Kidd children, accompanied by their great uncle, crisscross the country in a race to prove that a newly-discovered copy of the Bill of Rights is a forgery.
Bick, Beck, Storm, and Tommy have one week to traverse the Australian Outback, locate Charlotte Badger and her pirate cronies, and find evidence to prove their parents innocent of stealing rare opals.