When a large meteor crashes into a quiet town, pet dogs become mysteriously aggressive - attacking and killing the residents. Now the citizens are forced to fight back against their once beloved companions.
In the near future, glacial melting has covered ninety-eight percent of Earth's landmass. Sharks have flourished, and now dominate the planet, operating as one massive school led by a mutated alpha shark.
As the Barrett family's peaceful suburban life is rocked by an escalating series of disturbing events, they come to learn that a terrifying and deadly force is after them, one which may have arrived from beyond the stars.
A team of scientists aboard the International Space Station discover a rapidly evolving life form that caused extinction on Mars and now threatens all life on Earth.