An experimental Willwear is luring the police out into ambushes.  Unit 8 tracks down the user, who has a grudge against the police over an old corruption case.  But when they capture him, it turns out to be a different person entirely!  The mystery goes deeper than they suspect when they find out a former researcher at the Defense Univeristy is involved...
Our only clue is this mark left at the scene.
دليلنا الوحيد هو هذه العلامة 
.الّتي تركها في مكان الحادثة
Wir haben einen Anhaltspunkt:
Dieses Zeichen, das er an den Tatorten ließ.
Nuestra única pista
es la marca que deja.
Nuestra única pista
es la marca que deja.
Notre seule piste, 
c’est ce symbole trouvé sur les lieux.
L'unico indizio che abbiamo
è questo simbolo lasciato sulla scena.
Nossa única pista é essa marca que 
ele deixa ao sair da cena do crime.