The Mac 27 (Nicolas Lea) is the Innobotics Corporation's most advanced android. It is incapable of emotions - in order to avoid the murderous failures associated with earlier models. But, the new prototype begins showing some disturbing glitches, and escapes during a debugging session, killing a scientist, a security guard and taking Celia (Nana Visitor) hostage. They drive to a deserted warehouse where Celia becomes a reluctant nurse, patching up Mac's mangled circuitry. Along with instructions for his repairs, Mac transfers visual data on the history of different android projects directly to Celia's optic nerve. As she becomes more comfortable with her captor, she detects some very human qualities in the motivations behind his flight. As Innobotics' security closes in, Celia tries to convince Mac that the act of rebelling against his creators is emotionally based, and that he does, in fact have feelings.