Following the murder of Andre Toulon by Nazi assassins during the height of World War II, a young Danny Coogan finds his crate of mysterious puppets, and discovers their plan to attack a secret American manufacturing plant.

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.