You were kidnapped by terrorists and brought to a castle far away from the civilization. They force you to construct a nuclear bomb for their next big attack so it's your job to escape the castle.
Nobody pays attention to a meteorite fall in the jungle and a few years later, military satellites discovered strange activity in the jungle. Your government sends elite commandos to find out what is going on and to try and clear up the situation..
A Reaper is a black ops agent with stealth capability in which he can use portals to move faster than light. But a team of Reapers has gone rogue, so you must hunt them.