Butterfly effect: The scientific theory that a single occurence, no matter how small, can change the course of the universe forever.A father and son diving off the coast of Hawaii, with the sharks closing in.

A scientist in a forest under attack from a savage bear.

A young girl who has been kidnapped by drug dealers in Rio.

The teenagers surfing on top of a speeding bullet train.For them, and many others, things will never be the same again.Some will live.

Many will die. All are connected.The action is non-stop in this tense and compelling adventure.