Forty days and forty nights of torrential rain swell the Mississippi River to the brink of deadly rampage. Clementine Price, a young Army Corps of Engineers officer born beside the river, draws on science, brutal loss, and a warrior spirit to protect the people and the homeland she loves from a catastrophic flood. Suddenly, she discovers that a richly funded domestic terrorist-hiding in plain site as a pillar of the community-has ingeniously weaponized the looming natural disaster.
Inspired by a river as powerful as it is unpredictable, his plot to inundate the Delta and cleave from America his own white supremacist nation is already in motion. Clementine has only hours to stop civil war and save millions from drowning. With the help of fellow Corps officers, civil servants, farmers, and local law enforcement, Clementine must harness the power of the torrent to turn nature's fury against her enemy and embrace the raging river as her most potent ally.