American Sniper is a 2014 American biographical war film, follows the life of Kyle, who became the deadliest marksman in U.S. military history with 255 kills from four tours in the Iraq War, 160 of which were officially confirmed by the Department of Defense. While Kyle was celebrated for his military successes, his tours of duty took a heavy toll on his personal and family life.
Growing up in Texas, Chris Kyle is taught by his father how to shoot a rifle and hunt deer. Years later, Chris has become a ranch hand and rodeo cowboy, and returns home early, to find his girlfriend in bed with another man. After telling her to leave, he is mulling it over with his brother when he sees news coverage of the 1998 U.S. embassy bombings and decides to enlist in the Navy. He qualifies for special training and becomes a U.S. Navy SEALs sniper.
Chris meets Taya Renae at a bar, and the two soon marry. He is sent to Iraq after the September 11, 2001 attacks. His first kills are a woman and boy who attacked U.S. Marines with a Russian made RKG-3 anti-tank grenade. Chris is visibly upset by the experience but later earns the nickname "Legend" for his many kills. Assigned to hunt for the al-Qaeda leader Abu Musab al-Zarqawi, Chris interrogates a family whose father offers to lead the SEALs to "The Butcher", al-Zarqawi's second-in-command. The plan goes awry when The Butcher captures the father and his son, killing them while Chris is pinned down by a sniper using a Romanian PSL sniper rifle. This sniper goes by the name Mustafa and is an Olympic Games medalist from Syria. Meanwhile, the insurgents issue a bounty on Chris.
Chris returns home to his wife and the birth of his son. He is distracted by memories of his war experiences and by Taya’s concern for them as a couple; she wishes he would focus on his home and family.
Chris leaves for a second tour and is promoted to Chief Petty Officer. Involved in a shootout with The Butcher, he helps in killing him. When he returns home to a newborn daughter, Chris becomes increasingly distant from his family. On Chris' third tour, Mustafa seriously injures a unit member, Ryan "Biggles" Job, and the unit is evacuated back to base. When they decide to return to the field and continue the mission, another SEAL, Marc Lee, is killed by gunfire.
Guilt compels Chris to undertake a fourth tour, and Taya tells him that she may not be there when he returns. Back in Iraq, Chris is assigned to kill Mustafa, who has been sniping U.S. Army combat engineers building a barricade. Chris' sniper team is placed on a rooftop inside enemy territory. Chris spots Mustafa and takes him out with a risky long distance shot at 2100 yards (1920 meters), but this exposes his team's position to numerous armed insurgents. In the midst of the firefight, and low on ammunition, Chris tearfully calls Taya and tells her he is ready to come home. A sandstorm provides cover for a chaotic escape in which Chris is injured and almost left behind.
After Chris gets back, on edge and unable to adjust fully to civilian life, he is asked by a Veterans Affairs psychiatrist if he is haunted by all the things he did in war. When he replies that it is “all the guys [he] couldn't save" that haunt him, the psychiatrist encourages him to help severely wounded veterans in the VA hospital. After that Chris gradually begins to adjust to home life.
Years later, on February 2, 2013, a happy Chris says goodbye to his wife and family as he leaves to spend time with a veteran at a shooting range. An on-screen subtitle reveals: "Chris Kyle was killed that day by a veteran he was trying to help", followed by archive footage of crowds standing along the highway for his funeral procession. More are shown attending his memorial service.