Death Fighter (2017) on Netflix

Plot summary

A police officer from the United States is working in Thailand when his mentor is murdered during a trade deal, and the death puts him on the wrong side of the law there. A bounty is placed on his head, and he comes under pressure to leave the country. He stays and teams up with a former soldier now working as a mercenary, a man with a score of his own to settle. The two of them set out to find the killers and bring them to justice. The hunt brings them up against a band of notorious criminals, who promise to take the pair down unless the jungle and its natural elements get to them first.