Ninja Assassin movie plot

The orphan Rui Zuo (was adopted by a mysterious group called Ozunu from an early age and was trained to become a martial arts assassin. Because his good friend was brutally killed by the Ozunu group, Rui Zuo, who was tired of his murderous career, made up his mind to leave the group, then hid himself and waited for the opportunity to avenge his friend. European officers Mika () in the investigation of a series of political murders, found that the case appears to be associated with a group of assassins from the Far East. Then she defied the order of her boss and secretly searched for secret files and learned the truth behind the murder. For this reason, the Ozunu group sent a team of assassins to kill them. At the critical juncture, Rui Zuo rescued Mika, but both of them knew very well that the group would not give up unless the two of them were finally eradicated. So the two decided to jointly deal with the Ozunu Group and completely destroy it. Just on the streets of Europe, a game of cat and mouse is being staged.