A serial bomber is on the loose. Will the team with the help from Caine's old bomb squad mentor be able to work out the puzzle and find the bomber?

A dead man with a slit throat and a partially burned face is discovered on a Miami beach, along with an unconscious young girl who was beaten and thrown into the ocean. The investigation leads Horatio to a prominent Florida family and its steely patriarch, who was once involved in a mysterious case that has plagued Horatio for years.