|Official Release Date||Sep 24, 2015|
|Starring||Tony Jaa, Wu Jing, Simon Yam, Zhang Jin, Louis Koo|
|Audio||DTS-HD MA 7.1, Dolby Digital 5.1|
|Running Time||120 Mins|
Not suitable for young persons and children.
香港臥底探員志杰(吳京)不惜變成癮君子，潛伏犯罪 集團偵查幕後主腦洪先生(古天樂)；直屬上司兼叔父華哥 (任達華)決定終止行動，杰卻身份敗露且人間蒸發！華違抗 命令私自搜尋，輾轉得悉杰已被關進泰國某監獄，遂隻身前 赴營救。
泰國警察阿猜(Tony Jaa)為籌錢醫治患血癌的女兒轉任 獄卒，負責看管杰。杰與猜語言不通、身份對立，卻竟是唯 一可拯救猜女兒的骨髓捐贈者，猜必須保住杰的性命；但獄 長(張晉)為確保幕後交易運作暢正常，必須剷除杰！
身體虛弱的洪先生帶同胞弟(恭碩良)出現，準備進行 心臟移植手術自救；原來整個監獄是洪先生操控的活人體器 官供應市場…
Kit (Wu Jing) is a Hong Kong undercover cop who becomes a drug addict to infiltrate a crime syndicate which has been kidnapping people and sending them to Thailand, where the victims are killed and have their organs sold in the black market. The mastermind behind the syndicate, Mr Hung(Louis Koo), has a rare heart condition and needs to undergo a heart transplant to prolong his life. Hung's younger brother (Jun Kung) is the ideal donor for a heart.
When Hung sends his men to kidnap his brother, the situation goes haywire and a gunfight breaks out. Hung's brother is injured during the shootout but is rescued by the police. Kit, on the other hand, escapes with the kidnappers but his cover is blown. Hung's men send him to a prison in Thailand, where the chief warden, Ko Chun (Zhang Jin), works for Hung and has been keeping kidnapped victims until they are killed to harvest their organs.
One of the prison guards, Chatchai (Tony Jaa), has a daughter with leukaemia who needs to undergo a bone marrow transplant to survive and the donor who agrees to donate compatible bone marrow turns out to be Kit.
So with Chatchai trying to keep Kit alive, Chun trying to get rid of him and Hung showing up with his henchmen to hunt down his by then kidnapped brother … well, all you really need to know is that they all meet up for an epic showdown that leaves no martial arts fan's heart untouched (or harvested).