When White House canine "Hooligan" is given a gift from a visiting head-of-state, everything seems normal. But then a chaotic scene plays out on the South Lawn, and one of the "diamonds" on the dog collar ends up lost. Or stolen. Determined to find the answers and the possible thief, First Kids Cammie and Tessa, along with their cousin Nate, start sleuthing. Is a crime underway? And if so, which of the White House employees is involved? A fun mystery that includes several romps throughout the White House and its manicured lawns.