Busy with other projects, author Neil Gaiman didn't think he had the time to write another "Doctor Who" episode after his award-winning "The Doctor's Wife." Then show runner Steven Moffat told him he could make the armor-plated, steampunk Cybermen scary again. The result is "Nightmare in Silver," airing at 7 p.m. CT May 11 on BBC America. The Doctor's old foes have learned some new tricks. (Chess! Speed!) They're threatening the universe again--beginning with Hedgewick¿s World of Wonders, an now dilapidated amusement park where The Doctor takes Clara and her young charges, Artie and Angie. The daytrippers are having a good time with resident showman Webley and his chess-playing pal, Porridge. They also encounter a dysfunctional army platoon and, well, the "upgraded" Cybermen. Stephen Woolfenden directed the episode. Check out the photos and a trailer in the gallery. By Curt Wagner, RedEye's Show Patrol Want more? Discuss this article and others on Show Patrol's Facebook page.