A stylishly written thriller that tackles the relationship between high finance and extreme weather events. The Ark Storm is coming - a catastrophic weather event that will unleash massive floods and wreak more damage on California than the feared "Big One." One man wants to profit from it. Another wants to harness it to wage jihad on American soil. One woman stands in their way: Dr. Gwen Boudain, a brave and brilliant meteorologist. Meanwhile, Wall Street suits notice that someone is placing six-month bets on the prospect of an utter apocalypse and begin to investigate. Standing in the shadows is journalist Dan Jacobsen, a former Navy SEAL. War hardened and cynical, Jacobsen is a man with his own hidden agenda.