Project Questor is brainchild of the genius Dr. Vaslovik: he developed plans to build an android super-human. Although he's disappeared and half of his programming tape was erased in the attempt to decode it, his former colleagues continue the project and finally succeed. But Vaslovik seems to have installed a secret program in Questor's brain: He flees and starts to search for Vaslovik. Since half of his knowledge is missing, he needs the help of Jerry Robinson, who's now under suspect of having stolen the android.
Arthur Bishop is a veteran hit man who, owing to his penchant for making his targets' deaths seem like accidents, thinks himself an artist. It's made him very rich, but as he hits middle age, he's so depressed and lonely that he takes on one of his victim's sons, Steve McKenna, as his apprentice. Arthur puts him through a rigorous training period and brings him on several hits. As Steven improves, Arthur worries that he'll discover who killed his father.
Two veteran private eyes trigger a criminal reign of terror with their search for a missing girl. | Al Hickey (Cosby) & Frank Boggs (Culp) are two jaded private investigators who get hired to find a missing woman and quickly find themselves submerged in a world of murder and untruths.