The shark has been exposed to radiation and is now mutated. He floats in the sea and eats fishes. The more he eats, the more he grows. People are afraid of him and they are trying to destroy him. Try to survive their attacks.
Be careful with the floating mines because they will harm you and lower your shark blood level. You can eat fish to heal up a bit. There is so much life waiting in and outside of the sea to be eaten by you! Have fun with Angry Shark!