The Furious

In a city in Southeast Asia, journalist Matia investigates a unchecked local child trafficking despite her husband Navin requesting her to return home. She finds trafficked children and fights traffickers to help a child escape. The traffickers' leader, Paklung, and his kukri and bow-wielding lieutenant, Tak, arrive. Tak kills the child and captures Matia.

Months later, mute handyman Wang Wei is visited by his daughter Rainy, who wishes for him to return with her to China. Wei refuses, intending to send Rainy back alone. Rainy runs off in anger, meeting a limping boy who lures Rainy to be kidnapped by traffickers, led by Ho. Wei finds and fights the traffickers, but they ultimately escape with Rainy. Wei informs the local police, but the police captain, secretly working with Paklung, shuts down the investigation. The police then discover that Wei has an unknown past.

Meanwhile, Navin investigates Matia's disappearance by pretending to purchase children from trafficker Song, Ho's "father", at his fight club. Wei, recalling evidence tying the traffickers to Song's fight club, arrives there as well. A trafficker recognises Wei and alerts others to attack him. Spooked by the conflict, Song orders Navin killed. Navin and a hammer-wielding Wei fend off their attackers, then battle each other, before realising their common enemy and allying together. Analysing Navin and Matia's collected evidence, Wei discovers a lead and goes with Navin to Song's ice factory, where the children were supposedly held. Wei and Navin violently defeat Song, his henchmen, and a sledgehammer-wielding Ho, but the children are nowhere to be found. Wei and Navin torture Song via electrocution, where he discloses that the children were moved to a location called the "Snake Pit", and that Matia is dead. After the two leave, Song tries to escape, but Paklung and Tak arrive to execute him. Ho later recovers and finds Song's corpse.

At the Snake Pit, Rainy attacks a trafficker, starting an escape attempt by the children, though most are recaptured. Wei and Navin arrive, fighting the traffickers and reuniting with Rainy. With Navin live-streaming and publicizing the rescue attempt, the public and police are alerted, arriving at the Snake Pit. The police captain has the police stop the public from interfering while more traffickers arrive to stop Wei and Navin. Navin instructs Wei and Rainy to leave safely while he fights on, but Rainy persuades Wei to help all of the other trafficked children escape. The police captain is overruled by his sergeant, Yadong, and the remaining police and public scramble to help. With Navin and Wei brutally stopping the traffickers, the public manages to save Rainy and the children, while the sergeant manages to shoot a trafficker to save the limping boy. The surviving traffickers are arrested, while the kidnapped children are reunited with their families. Navin and Wei are held overnight at the police station's jail, with Rainy and the limping boy also present at the station.

When Paklung's father-in-law, a criminal kingpin, attempts to turn Paklung in as a fall guy to the police captain, Paklung instead slaughters his father-in-law and his aides, as well as the police captain, but accidentally kills his pregnant wife during his rampage. Paklung and Tak arrive at the police station for revenge, slaughtering most of the policemen and incapacitating Yadong. Wei and Navin escape from the jail cell to protect Rainy and the limping boy. As Wei and Navin duel Paklung and Tak, Ho arrives and attacks all the fighters. Tak admits his role in Matia's killing; Navin suffers fatal stab wounds from Tak but fatally bites Tak's neck. Paklung kills Ho and knocks Wei out, but not before Wei delivers fatal heavy blows to Paklung's head. Rainy and the limping boy prepare to defend Wei, but Paklung succumbs to his concussions before collapsing dead.

One month later, Wei, Rainy, the limping boy, and Yadong scatter Navin's ashes into the sea, while also honoring Matia. In a flashback, Wei's name is revealed for the first time by Wei to Navin while in the police jail. After scattering the ashes, Wei begins to tell Rainy his life story.