After being attacked on the street, a young man enlists at a local dojo, led by a charismatic and mysterious sensei, in an effort to learn how to defend himself from future threats.After being attacked on the street, a young man enlists at a local dojo, led by a charismatic and mysterious sensei, in an effort to learn how to defend himself from future threats.After being attacked on the street, a young man enlists at a local dojo, led by a charismatic and mysterious sensei, in an effort to learn how to defend himself from future threats.