Nautical archaeologist Tom Cochran makes a startling discovery during a routine dive in the Gulf of Mexico. The context of the mystery wreck is perplexing until he enlists the help of a woman from his past whose special skills unlock important clues and old desires. Their hunt for a connection between the sleepy town of Pensacola, Florida and the chaos of the closing days of the Second World War threatens to unravel a bygone conspiracy. Each shocking revelation leads them closer to a truth that's worth killing to protect.