During Star Trek TNG's 1st season, Denise Crosby signs up to reprise the role of Tasha Yar for a second season and the producer did not kill Tasha Yar. Gates McFadden decided to leave Star Trek TNG to replaced by Diana Muldaur during season two. After season two, Diana Muldaur signs up to reprise the role of Dr. Pulaski for the third season. Paramount Pictures decided to make additional seasons for TNG until it ended in 1996. Star Trek: Deep Space Nine aired in 1993 with Colm Meaney reprised his role as Chief O'Brien and Ro Laren joining DS9 cast, the pilot episode is about a Cardassian emperor (Miguel Ferrer) seeking help from Commander Sisko and his new crew of the space station to prevent the Cardassia from being destroyed. In 1996, on the United Paramount Network, the new station that premiered on January 16, Star Trek: Voyager premiered with the pilot episode: "Caretaker," the Maquis group led by Chakotay hijack the U.S.S. Prometheus, the new starship, after completing her deep space trials and was lost in the Badlands, so the U.S.S. Voyager under the command of Captain Kathryn Janeway to find the missing starship and was lost in the Badlands and was transported to the Delta Quadrant by an entity known as the Caretaker, so Kathryn Janeway and the Maquis crew aboard the Prometheus, also transported to the Delta Quadrant, to defeat the Caretaker and get back home. In the end, the Prometheus was destroyed along with the Kazon and the Caretaker's array, so the crew must find their way home. TNG ended with the final episode "All Good Things," with the Enterprise-D destroyed in the end. In November 22, 1996, Star Trek: Generations released with the crew getting the Enterprise NCC-1701-E, based on the Prometheus model, and Picard helping Kirk defeat Dr. Soran. Deep Space Nine was cancelled in 1998. Star Trek: First Contact was released. In 2001, Star Trek: Voyager ended and Star Trek: Enterprise premiered, set in 150 years in the future, Captain Jonathan Archer commands the first starship, Enterprise, on the mission to explore strange new worlds and new civilizations. Star Trek: Nemesis was released. Eight years later, Star Trek was released under the direction of J.J. Abrams, with the Enterprise prevents the Romulans led by Captain Nero from destroying Vulcan.