The Revenge(1978)

Original title: Singh Sang Pa

Singh (Sombat) returns home to Thung Kla only to find his house burned down and his parents murdered. Chan (Krung), a gambler from Bangkok who accidentally stumbles onto the path of assassination, joins Singh in investigating the murders of Singh's parents. Revenge must be served; Singh must wage war in the jungle to erase that vendetta! Stay tuned...