This is a 4-part anime OAV series released by Pioneer in the US. It concerns a policeman Ross Syibus whose previous partner was killed by a Robot and his new partner Naomi Armitage. It takes place on a colonised Mars and centres around the mystery of new third-type robots (Thirds) that are basically indistinguishable from humans, where do they come from, who is killing them, and what exactly does this have to do with Armitage.

The chapters of the OAV are:

  1. "Electro Blood"
  2. "Flesh and Stone"
  3. "Heart Core"
  4. "Bit of Love"
There has been a film version produced called "Armitage III Poly-Matrix" also from Pioneer. It is material from the original OAV edited together with some new footage.