"What happens if both the president and vice-president-elect die before taking the oath of office? The answer is far from certain--in fact, what follows would be nothing short of total political chaos. Shot down over Siberia, ex-Justice Department agent Cotton Malone is forced into a fight for survival against Aleksandr Zorin, a man whose loyalty to the former Soviet Union has festered for decades into an intense hatred of the United States. Before...

Lawyer and former senator Ben Kincaid is in a meeting with the president when Washington suddenly explodes into chaos. Facing an imminent threat to the White House, Kincaid is whisked, along with the president and his advisors, to the underground Presidential Emergency Operations Center, where they discover that a malevolent foreign dictator has hacked into the US nuclear defense system, and is threatening unfathomable destruction.

"Because its enemies never stop trying to undermine the United States' security, the men and women who serve to protect America must always be vigilant. Few know this better than warriors Brad McLanahan and Nadia Rozek. Newly married, the two are just beginning to settle into their new life together when they are called back into action. Though the Russians were badly defeated by Brad and the Iron Wolf Squadron in their previous bid for world dominance,...

In the middle of the night, an explosion rocks Cambridge, Massachusetts and wakes Saul Signalman from bed. Blue, ethereal light pulses into the sky. A FaceTime call pulls him away from the view. It’s his wife, consumed in light, bidding him farewell. And then—the call ends. The explosion of light intensifies. The power goes out. Electronic devices stop working. In the dead of night, he races to his wife’s lab at the explosion’s core, but the...