London faces death and destruction when a radioactive monster emerges from the depths of the ocean--and millions flee in terror from The Giant Behemoth.England, 1959. The horrors of the Atomic Age threaten Britain when thousands of fish begin to wash up dead on its shores--then fishermen are found mysteriously dead at sea. Two scientists investigating these mysteries discover something far more frightening than their worst nightmares: A giant, radioactive sea creature that has been horribly mutated by the effects of radioactive fallout staggers from beneath the depths bringing death to every living thing in its path. And--even worse--they realize the monster is heading for London!