Still recovering from the tragic loss of a good friend, Jack Sigler, callsign: King, leads the Chess Team--a crew of former Delta operators--back into action. But what should be a routine snatch-and-grab to capture a drug cartel leader, escalates out of control, throwing the team into a challenge unlike anything they've ever faced. An enemy from their past, who is close to unmasking their identities, joins forces with the psychotic cartel kingpin, setting a trap that will shake the team to its foundations. While the team battles enemies old and new, King's fiancee, CDC disease detective, Sara Fogg, struggles to stop a strange outbreak that transforms the infected into ravenous, inhuman monsters. Once responsible for the disappearance of the Roanoke settlers, the disease now threatens to spread across the planet, ending human civilization in a bloodbath of violence.