Miranda Chase - the heroine you didn't expect. Fighting the battles no one else could win.The White Top helicopters of HMX-1 are known by a much more familiar name: Marine One. The S-92A, the newest helicopter in the HMX fleet, enters service after years of testing.When their perfect safety record lies shattered across the National Mall, Miranda Chase and her team of NTSB crash investigators go in. They must discover if it was an accident, a declaration of war, or something even worse.