Dark Horse Comics acquired the rights in 1990 and published The Terminator (titled Tempest in trade paperbacks to distinguish itself), where a group of human soldiers and four Terminators come to the present, to respectively kill or protect the developers of Skynet. One of the Terminators is Dudley, a human doctor with cybernetic implants, and he betrays his group as he feels he can make a difference in the past. In the following year's sequel Secondary Objectives, the surviving Terminator leader, C890.L, is reprogrammed to destroy another Terminator sent to aid him and kill Sarah Connor. In the immediate follow-up The Enemy Within, C890.L rebuilds and modifies himself to become more dangerous than ever, while a team of human assassins attempt to return to the past and kill a Skynet developer. The 1992 Endgame concludes this arc, with human colonel Mary Randall, having lost Dudley and her soldiers in the final battle with C890.L, protecting Sarah Connor as she goes into labor. Sarah gives birth to a girl named Jane, whose future leadership means Skynet is quickly defeated and never develops time travel.