From NetFlix:

Kathryn Bigelow directs this gripping drama (nominated for two Independent Spirit Awards) following one of the U.S. Army’s elite EOD (explosive ordnance disposal) teams operating in the ferocious war zone of Iraq. As the squad identifies and dismantles improvised explosive devices and other bombs, they must also contend with the frayed nerves and internal conflicts that arise from living in constant peril. Ralph Fiennes, David Morse, Guy Pearce, Jeremy Renner and Anthony Mackie star.

Hopefully this film tells it like it really is in Iraq. If so, I don’t see how any soldier in Iraq stays sane: the constant fear, especially in the EOD, would eventually unhinge most humans. Plot is secondary. Rather the film is a sequence of hair raising episodes in the life of the EOD. Once such a episode started, I could not get my eyes off the screen. Episode after episode I never got accustomed to the tension. What little there was of plot involved the difference in personalities between Staff Sergeant William James, the bomb expert, and the other soldiers. James is a chance taker, seemingly impervious to the dangers.

Be prepared for gore: a bomb is planted in the body of a dead child, a family father is forced to become a suicide bomber, etc.

For a complete description see wikipedia.