A 4-man SEAL team is sent in to capture or kill a Taliban leader in Afghanistan. They are discovered soon after entering the country so they are forced to fight a futile battle against a superior number of riflemen. One of them manage to contact their military base to send helicopter support but one of the helicopters is shot down effectively ending any hope of their immediate rescue. Most of them are killed leaving a lone survivor. The lone survivor is Marcus Luttrell and he is saved by a local Afghan man before the riflemen find him in the mountains. He is brought to the Afghan man's village. This is based on the real life Operation Red Wings which happened in 2005.