Unfortunately, the sisters have a problem with being blabbermouths; as a result, everywhere the Parkers are sent to live, the girls inadvertently end up revealing their witness status.

The family travels everywhere in the United States, from Texas to a prairie town, and eventually have been moved to every geographic location around the world possible, with the single exception of Australia.

After the twins manage to convince them to change sides; they leave after the girls lure Hatchew to Australia.

Hatchew nearly gets away on a seaplane, but the twins stop him by using a boomerang, and he is arrested by Katie, an undercover FBI agent posing as a lifeguard.

The Parkers are finally able to return home to the United States with half the reward money for capturing the thieves.