Loss Of Reason: (State Of Reason, Book 1) – Miles A. Maxwell

Cynthia, her husband and infant child live in New York City. The city is hit by a nuclear bomb. Despite martial law, radiation, and the destruction of the bridges and tunnels into Manhattan, her two step-brothers, Franklin and Everon are determined to find and save her. An exciting tale of love and sibling-hood in the face of nuclear disaster.

A ripping good tale of how intelligence and determination can overcome the near-impossible. And of the true price of altruism.