Shogun Assassin (1980)

An assassin is shot by her ruthless employer, Bill, and other members of their assassination circle – but she lives to plot her vengeance.

Ninja Assassin follows Raizo, one of the deadliest assassins in the world. Taken from the streets as a child, he was transformed into a trained killer by the Ozunu Clan, a secret society whose very existence is considered a myth. But haunted by the merciless execution of his friend by the Clan, Raizo breaks free from them and vanishes. Now he waits, preparing to exact his revenge.

After saving the life of their heir apparent, tenacious loner Snake Eyes is welcomed into an ancient Japanese clan called the Arashikage where he is taught the ways of the ninja warrior. But, when secrets from his past are revealed, Snake Eyes' honor and allegiance will be tested – even if that means losing the trust of those closest to him.

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.

When his daughter is murdered, William Duncan takes the law into his own hands, setting out on a quest for retribution. After killing the street thug responsible for her death, he finds himself in the middle of a war with the thug's brother, father, and their gang, who are equally hell-bent on getting even. What ensues is a tense back-and-forth game of vengeance. By the end, William comes to find that the quest for revenge never has a winner.

Joe Armstrong, an orphaned drifter with little respect for much other than martial arts, finds himself on an American Army base in The Philippines after a judge gives him a choice of enlistment or prison. On one of his first missions driving a convoy, his platoon is attacked by a group of rebels who try to steal the weapons the platoon is transporting and kidnap the base colonel's daughter.

A ruthless criminal operative has less than 24 hours to exact revenge on her enemies and in the process forms an unexpected bond with the daughter of one of her past victims.

A peaceful ex-ninja's life shatters when his son's kidnapping forces him back into violence amid an American-Japanese criminal drug war.

When an evil emperor executes their leader, his band of knights – bound by duty and honour – embarks on a journey of vengeance that will not come to an end until they've destroyed their mortal foe.

A pair of debt collectors are thrust into an explosively dangerous situation, chasing down various lowlifes while also evading a vengeful kingpin.