Three Laws of Robotics robot's entire developing consciousness is based. This concept is largely fuzzy and unclear in earlier stories depicting very rudimentary robots who are only programmed to comprehend basic physical tasks, where the Three Laws act as an overarching safeguard, but by the era of "The Caves of Steel" featuring robots with human or beyond-human intelligence the Three Laws have become the underlying basic ethical worldview that determines the actions of all robots. In the 1990s, Roger MacBride Allen wrote a trilogy which was set within Asimov's fictional universe. Each title has the prefix "Isaac Asimov's" as Asimov had approved Allen's outline
Sci-Fi (G.I. Joe) of the G.I. Joe sub-team, the Star Brigade, which includes Space Shot, Roadblock and Payload. Teaming with the Oktober Guard, they destroy an asteroid that was headed for Earth. Sci-Fi makes an appearance in issue 25 of the Devil's Due G.I. Joe series. He is part of a demolitions team sent in to destroy EMP generators on Cobra Island. Led by the Joe Mercer, the team does so, but not without the deaths of Flash, Mainframe and the rookie Joe member, 'Hacker'. Jinx, another member of the team, survives. Sci-Fi is later seen fighting Cobra operatives in Peru. In the