Power Rangers S.P.D. is the thirteenth season of the Power Rangers television series. It debuted on February 5, 2005, on ABC Family. New episodes continued to debut on ABC Family until the episode "Messenger, Part 1". Starting with "Messenger, Part 2" episodes began to debut on Toon Disney. It was adapted from the Super Sentai series Tokusou Sentai Dekaranger. It is also the title for the Korean dub of Dekaranger in South Korea, whose logo is similar to the American series. S.P.D. stands for "Space Patrol Delta"; in Dekaranger, it stood for Special Police Dekaranger, and in the South Korean dub of Dekaranger, it stood for Special Police Delta. A Japanese dub of S.P.D. started airing on Toei's digital television channel in Japan starting in August 2011, with two DVD volumes released on August 5. It features the original Japanese Dekaranger cast members dubbing over the voices of their American counterparts.