Ford journeys to a region of Central Florida where they confront a cutthroat subculture of black-marketers and a ruthless multibillion-dollar phosphate industry that hides murder victims among its bone remains.

When a local teen from a trailer park being targeted by powerful developers witnesses their hired gun committing a murder, her only hope for survival falls in the hands of Doc Ford and Tomlinson, who undertake a search through the underground in the hopes of finding her first.

Sneaking an underwater look at a notorious Russian black marketeer's fancy yacht, Doc Ford emerges to discover that the marketeer's private island has been taken over by environmental extremists who threaten to kill a hostage every hour until their demands are met.

When a friend who was running a lucrative smuggling operation goes missing after selling a valuable cache of letters written by Fidel Castro, Doc Ford discovers that the letters may have contained a powerful secret.

"Many dangers lurk in the deep-the worst of them are human. Thirty minutes into what should have been an easy, beginner-level dive in a remote Florida lake, the rim of a cave collapses, trapping two of Doc Ford's friends. Ford himself manages to escape and quickly surfaces to find help-but that's when his troubles only begin. Two men are waiting for him on the shore, and they are not the kind of men you want to meet at any time. Murderers and ex-cons,...