Help Marcus!

An American scientist, researcher and military officer Marcus finds out from samples after work done in Africa, a lethal virus called "Pandorus" that can threaten millions of lives even if a small amount is scattered in the air, knowing the deadly pontential of the substance ,he keep it with him in his lab coat and then travels on a mission to investigate an alleged threat of a gaseous substance spread by a volcano on an island in the Pacific that could be a real danger to mankind. 

Hired by a private company that offered $ 10,000 in cash for him, helps them discover the kind of gas that was emanating from the island, so he is mistaken, and discovers that company rather than being in favor of an ecological cause is a criminal organization controlled by Natalie Shutz, a German scientist who seeks to use Pandorus to gain power and cause terror in the world. Marcus is caught by hers mercenaries, they use a teaser on him and he becomes unconscious, they put him in a cell only of underwear, because when they searched his clothes they found several weapons, but the plane they
are is strucked by the toxic smoke as they flew over the island and eventually fall, but some mercenaries, the doctor and Marcus survive.

Alone is an island now surrounded by mercenaries looking for him, because only he knows about the virus and could incriminate them if he survived. So he leaves into the woods, and it turns out that some items like guns, utensils and clothes were left by missing people in some camps around the island, knowing that part of your mission is try to survive the wildlife and the mercenaries looking for you, escape the island to retrieve the Pandorus to save the world from a cruel fate.