Stardate N.G.   When the crew finds a deactivated humanoid robot with an unfamiliar power source floating in space, Chief Engineer B'Elanna Torres is able to repair this mysterious mechanical 'man.' When it comes to 'life,' the sentient artificial lifeform, Automated Unit 3947, explains that its kind is near extinction and asks Torres to build a prototype for the construction of more units. In accordance with the Prime Directive, Torres must decline the request, but when 3947's Pralor homeship is located, the robot abducts her and threatens to destroy Voyager unless she constructs the prototype.