The North Korean government is days away from realizing its nuclear ambitions and only the heroes of SEAL Team Six can stop them.Captain Thomas Crocker of SEAL Team Six's Black Cell is in Las Vegas after conducting a training exercise in the desert with new members of the team. Lounging by the pool at Caesar's Palace, he witnesses an argument between hotel security guards and three Asian men in corporate attire that quickly turns physical. Giving chase, he soon corners the businessmen, who claim to be Chinese diplomats under the protection of diplomatic immunity. Except the men don't respond when the head of hotel security—Crocker's old friend—addresses them in Mandarin. That night, someone hacks into the Nevada Power Company system, and Las Vegas goes completely dark. The businessmen set their hotel suite on fire and escape amidst the chaos. At the same time, James Dawkins, a brilliant scientist with top-secret clearance, disappears from...