After witnessing his brother being killed in the ring in a brutal bout in Thailand, young kickboxer Kurt (Alain Moussi) decides to train under the tutelage of his brother's legendary, no-nonsense coach Durand (Jean-Claude Van Damme), in order to take-on Tong Po (Dave Bautista), the man responsible for his brother's death. Durand doesn't feel Kurt has what it takes to defeat the awesome strength of Tong Po. But Durand doesn't reckon on Kurt's powerful and unquenchable thirst for vengeance.