Plot
In Kandahar Province, Afghanistan, Canadian Army troops are encountering resistance from insurgents as they construct "Hyena Road" deep into Taliban territory.
Warrant Officer Ryan Sanders, the leader of a sniper section, finds himself under heavy fire while on sentry duty on the road. After their assigned evacuation vehicles are unable to reach their location, the section moves on foot and reaches a Pashtun village. They are harboured by a tribal elder (who has eyes of two different colours, one brown and the other blue) in his home, who sends the Taliban away after they attack the village while searching for the Canadians.
Sanders and his section evacuate the area and return to base, where his secret lover Captain Jennifer Bowman, an officer in the Princess Patricia's Canadian Light Infantry (PPCLI), is also stationed.
Meanwhile, Captain Pete Mitchell, an Intelligence Branch officer, carries out normal duties as the road is constructed, with little help from the Afghan National Army (ANA). When he hears Sanders' story of the Afghan elder, he decides to search for the man as a potential ally. He is helped in his search by a local asset assisting against the Taliban, called The Cleaner.
While a search of the village yields nothing, Mitchell believes the man to be "the Ghost", a former militant who fought against the Soviets in the Soviet-Afghan War who gained his nickname for disappearing every time he was wounded, as his comrades would take him across the mountains into Pakistan to recover, out of the range of the Soviet military.
Mitchell eventually arranges a meeting with the Ghost, but the Ghost refuses to accept money as a deal for his help, wisely stating, "Only a fool accepts a gift without knowing what its worth". During this conversation, Mitchell confirms his suspicion that they are talking with the man widely regarded as "The Ghost".
Meanwhile, the Canadians' Afghan ally, Bashir Daoud Khan (BDK), and his son, Karim, are double-crossing them and are working with the Taliban. Sanders' section sees this firsthand while observing the Ghost visit his son's home and granddaughters. The home was situated on land owned by BDK, while the crops had been destroyed by a Coalition airstrike some time in the past, leaving the Ghost's son with nothing to give BDK as his tithe for protection.
Soon after the Ghost leaves, BDK arrives with Taliban protection and instructs the Ghost's son to pay up his money. When the son doesn't give the money owed, BDK kidnaps the Ghost's granddaughters. Sanders' fireteam observes the whole scene, but Mitchell repeatedly instructs them to hold their fire as they do not fully understand local politics. While everyone in the Canadian intelligence group knows their Afghan allies are crooked, there is no alternative in the province, and they need all the help they can get.
Meanwhile, Bowman reveals to Sanders that she is pregnant with his child, conceived while both were on leave in Cyprus. Sanders rejoices in this, despite its being a serious problem given military regulations prohibiting fraternization. Before leaving for his next mission, Sanders proposes to Bowman and she happily accepts.
The Canadians follow the Ghost, who has declared a personal war against BDK in revenge for the kidnapping of the girls. With assistance from his tribe, the Ghost abducts BDK's son Karim and beheads him. Following this, the Ghost arranges a meeting with BDK in an isolated house, at the same time that BDK is supposed to be with the Canadians as they commemorate the opening of Hyena Road.
When BDK arrives with his bodyguards in a convoy, he demands to know the location of his son. The Ghost responds by opening a sack he has brought and holding up Karim's severed head, at which point BDK pulls out his pistol and threatens to kill the Ghost.
Sanders and his section, who have been observing the incident, shoot and kill BDK as they see his positive intent of violence. They do not, however, know that the Ghost desired to die having nothing else to live for and only wanted to avenge his grandchildren who he assumed were lost forever.
As the section pulls out, dozens of Taliban insurgents arrive, and the section is trapped with the Ghost around the house. Although they fight off the insurgents, there is no support available, and the Canadians are pinned down. After Travis, a member of Sanders' section, is shot in the head by a sniper, the section decides to relocate into the house under heavy enemy fire.
As they move, they run into an IED, incapacitating the section, and only Sanders and the Ghost survive. Recognizing there is no escape, Sanders calls for an artillery strike on his location to eliminate the insurgents. After apologizing for the last time to Bowman, who desperately tries to countermand the order, Sanders tells the Ghost that he was going to be a father, something the Ghost appears to understand despite his not speaking English. Moments later, the artillery rounds hit the house obliterating Sanders, the Ghost, and many of the Taliban insurgents around them.
Later, Canadian troops rescue numerous Afghan children, including the Ghost's granddaughters, having acted on the Cleaner's information and other assets. The film ends with the ramp ceremony for Sanders and his section as Mitchell talks about how things will eventually get better, in the long term.
