After falling overboard during a cruise, a young woman washes ashore – injured, stranded, and stalked by sharks – as her desperate mother races to find her.

When glacial flooding causes a ripple effect of earthquakes and tsunamis, scientists must create sinkholes to absorb the water and makethe Arctic cold once more.

On a trip to Colombia, a group of college students encounter a fifty-foot boa constrictor, hungry for blood.

Sibling astronomers join forces with the military when hostile aliens attack Earth.