Kung Fu Jungle (2014) is a Hong Kong action film directed by Teddy Chan, starring Donnie Yen as the lead character, a former martial artist named Hahou Mo. Hahou is a skilled kung fu expert who, after accidentally killing a man during a fight, is sent to prison.

However, his time behind bars is interrupted when a serial killer, who targets martial artists and kills them in brutal fashion, begins his killing spree. Hahou is released from prison by the police to help track down the killer, using his unique martial arts knowledge and skills.

As the investigation progresses, Hahou finds himself in a deadly game of cat and mouse with the killer, all while dealing with his own demons. The film delivers exciting, well-choreographed action sequences and intense fight scenes, as Hahou uses his martial arts expertise to bring the killer to justice. Kung Fu Jungle is a thrilling blend of action, mystery, and drama with a strong emphasis on martial arts.