Movies like The Principal

When an inner-city Miami schoolteacher gets her knee broken after standing up to the school's gang leader, her mercenary combat specialist boyfriend goes undercover as a substitute teacher to take down the punk. Soon he discovers a conspiracy of criminals at work, and must reassemble his team from his last jungle raid to stop them.

When teacher Randall Thomasson is killed during a carjacking, an unexpected visitor shows up at his funeral - his estranged brother, Karl Thomasson. An ex-Green Beret turned mercenary, Karl signs on as a new substitute teacher in order to investigate Randall's murder.

Jeff, a young delinquent, is enrolled by his father in a kenpo school, in the hopes of teaching the boy some self-discipline. Years later, Jeff's mentor, Kim, is being threatened by one of the Korean mafia families. Jeff tries to help his old friend, but is too late to prevent Kim's death at the hands of an unknown hitman. Vowing revenge, Jeff takes on all of the families, using his martial arts skills to find the man who killed his friend.

In the streets of East Los Angeles, Manny is a formidable drug dealer. Impressed by his extravagant lifestyle and prowess, his young son, Kilo, yearns to follow in his footsteps. Kilo resolves to learn how to prosper in the drug world, and his new life as a dealer begins. In a world where a man wants everything, he may end up with nothing.

After federal agents arrest a drug czar and put him on trial, the cartel leader's vicious son storms a prep school and takes its students hostage. They rebel against the armed intruders and try to take back their academy by any means necessary.

Andy is a new teacher at an inner city high school that is unlike any he has seen before. There are metal detectors at the front door and the place is basically run by a tough kid named Peter Stegman. Soon, Andy and Stegman become enemies and Stegman will stop at nothing to protect his turf and drug dealing business.

A Philadelphia gang member becomes a drug kingpin and starts a feud with vicious rivals in his quest for the American Dream.

In an underground fight club, blackbelt Travis Brickley is killed after losing to the evil martial arts master Brakus. Travis' death is witnessed by Walter Grady, the son of his best friend Alex Grady. Alex and his partner, Tommy Lee, vow to avenge their friend's death by defeating Brakus and shutting down the fight club.

In this unusually accurate biography, small-time hood Al Capone comes to Chicago at the dawn of Prohibition to be the bodyguard of racketeer Johnny Torrio. Capone's rise in Chicago gangdom is followed through murder, extortion, and political fraud. He becomes head of Chicago's biggest "business," but moves inexorably toward his downfall and ignominious end.

A group of Russian mobsters have stolen a huge supply of paper for printing U.S. currency, and are now flooding the market with conterfeit bills. When one of the mobsters decides to give herself in and hand over a data CD to the DA, she is shot and killed, but not before handing the disc to an unsuspecting Tommy Lee. Despite working with the police as a martial arts instructor, Lee doesn't go to the cops with the disc, but instead goes on the run, giving the mafia time to kidnap his daughter and hold as a hostage in exchange for return of the disc. Will Tommy ever see his daughter again?

When a law student accidentally kills the son of a mob boss in a fight, he finds himself relentlessly pursued by the mob and the police.

The mysterious murder of a US senator bearing the distinctive trademark of the legendary Soviet assassin 'Cassius', forces retired CIA operative, Paul Shepherson to team with rookie FBI agent, Ben Geary to solve the crime. Having spent his career chasing Cassius, Shepherdson is convinced his nemesis is long dead, but is pushed to take on the case by his former supervisor, Tom Highland. Geary, who wrote his Master's thesis on Shepherdson's pursuit of the Soviet killer, is certain that Cassius has resurfaced.