A man is fighting another man in order to get his arm to save his girlfriend/partner. Humans has been forced to become cyborgs due to a virus, and the only way to save her is to give her this cybernetic body part. He kills the man with the cybernetic arm, goes to a lab where the girl is, and he throws the limb onto a scanner. It is analysed and found to be a 100% match with the hosts. The girl wakes up.