Timely yet terrifying, Flood unleashes the unthinkable. When a raging storm coincides with high seas it unleashes a colossal tidal surge, which travels mercilessly down England s East Coast and into the Thames Estuary, overwhelming the Barrier. Torrents of water engulf the city. The lives of millions are at stake. Top marine engineer, Rob (Robert Carlyle, The Full Monty, Trainspotting), his father, and his ex-wife come together and have only two hours to drain the city of water and save a city on the brink of annihilation.