Recounts the adventures of Mibs Beaumont, whose thirteenth birthday has revealed her "savvy"--a magical power unique to each member of her family--just as her father is injured in a terrible accident.

Mibs's cousin Ledge is disappointed to discover that his "savvy"--the magical power unique to each member of their family--is to make things fall apart, which endangers his uncle Autry's ranch and reveals the family secret to future reporter Sarah.