Sergeant Honma Eiji has been assigned to the Shanghai military police. 
Not long after assuming his new post, he is summoned by Captain Oikawa Masayuki. 
Oikawa orders Honma to conduct an internal investigation and uncover an enemy agent 
who's infiltrated their ranks. As he explains the mission, they hear an explosion...
and the whole group would 
collapse from within.
.وستنهار المجموعة بأكملها من الدّاخل
Und so würde die Einheit
von innen zusammenbrechen.
avant même
que l’on arrête ces attentats.
e tutto il gruppo collasserebbe su se stesso.
pois um vai começar a desconfiar do outro...