Undefeatable

In Los Angeles, an ex-con takes the underground fighting world by storm in his quest to fulfill a promise to a dead friend.

Raised as a slave, Danny is used to fighting for his survival. In fact, his "master," Bart, thinks of him as a pet and goes as far as leashing him with a collar so they can make money in fight clubs, where Danny is the main contender. When Bart's crew is in a car accident, Danny escapes and meets a blind, kindhearted piano tuner who takes him in and uses music to free the fighter's long-buried heart.

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.

Retired martial arts world champion Alex Faulkner has settled into a simple life, when the disappearance of two of his students leads to an unthinkable discovery close to home. Just when all hope of finding the children is lost, he locates the imprisoned girls and unsurfaces an international child trafficking operation, which draws him back into the fight of his life against those behind it.

Casey is attacked at random on the street and enlists in a local dojo led by a charismatic and mysterious Sensei in an effort to learn how to defend himself. What he uncovers is a sinister world of fraternity, violence and hypermasculinity and a woman fighting for her place in it.

In the fourth installment of the fighting franchise, Boyka is shooting for the big leagues when an accidental death in the ring makes him question everything he stands for. When he finds out the wife of the man he accidentally killed is in trouble, Boyka offers to fight in a series of impossible battles to free her from a life of servitude.