Tigershark (1987)

Fight everyone and trust no one: it's the code of survival practiced by martial-arts master Casey Bowman after his life of domestic bliss is shattered by a savage act of violence. Vowing revenge, the fearless American stealthily tracks the killer from Osaka to Bangkok to Rangoon with the help of a wise and crafty sensei. His only clues: a series of victims whose necks bear the distinctive mark of strangulation by barbed wire. Fighting to avenge as well as to survive, Casey must sharpen his razor-like responses and take his battle skills to the next level, even using deep meditation to fake his own death. His target: the sinister drug lord Goro, who is flooding the streets with deadly meth cooked at his remote jungle factory. To prepare for his ultimate confrontation, Casey must finally become an invisible warrior worthy of the name Ninja. But just when his prey is cornered, an unexpected twist shows Casey that his battle is only beginning: he truly can trust no one.

Jake Carter and another former Marine, Luke Trapper, join forces to rescue a young kidnapped girl from a gang of international criminals.

A blind Vietnam vet, trained as a swordfighter, comes to America and helps to rescue the son of a fellow soldier.

Vietnam vet Frank Vega now runs an East L.A. community center where he trains young boxers to survive in and out of the ring. But when his prize student falls in with the wrong crowd and turns up dead, Frank teams up with his pal Bernie to take matters into their own fists and prove that justice never gets old.

John, a disillusioned Vietnam War journalist, turns to heroin smuggling. He cons Ray, an equally burnt out veteran into delivering the drugs stateside to his wife. Everything soon falls apart and Ray ends up on the run with John's wife trying to evade crooked narcotics agents.

A graduate student and martial-arts expert rents a room in a house owned by a single mother who lives there with her son. A local street gang is trying to recruit the son, but the new tenant tries to help the boy's mother keep him out of the gang. When they learn of this, they target both the mother and her new tenant.

When a woman's father goes missing, she enlists a local to aid in her search. The pair soon discover that her father has died at the hands of a wealthy sportsman who hunts homeless men as a form of recreation.

A Texas cop battles ex-navy seals who are trying to traffic drugs from Mexico into the USA.

A Chicago cop is caught in the middle of a gang war while his own comrades shun him because he wants to take an irresponsible cop down.

Liu Jian, an elite Chinese police officer, comes to Paris to arrest a Chinese drug lord. When Jian is betrayed by a French officer and framed for murder, he must go into hiding and find new allies.