In 2008, a combined task group of People's Liberation Army Special Operations Forces and Chinese police raid a drug smuggling operation in an abandoned chemical facility in southern China. The leader of the smuggling operation, Wu Ji, holds one of his own men hostage while taking cover behind a section of the facility's reinforced wall. Leng Feng, a skilled PLA sniper, ignores orders to stand down and fires three shots at a weak section of the wall, penetrating through and killing Wu Ji. Leng Feng is sent to solitary confinement as punishment, but is approached by Long Xiaoyun, the female commander of the legendary 'Wolf Warriors', an elite unit within the PLA tasked with simulating foreign tactics for the PLA to train against. Long Xiaoyun offers Leng Feng a place in the Wolf Warriors. Meanwhile, in the Philippines, crime lord Min Deng, Wu Ji's older brother, hires ex–US Navy SEAL "Tom Cat" (Scott Adkins) and his group to kill Leng Feng and avenge his brother.