"The Rock of Sages" is an episode of The 7D. It is the series' first 30 minute episode as well as the Season 1 finale. It was originally scheduled to premiere Thursday, January 22, 2015 on Disney XD, but it had been removed from the schedule because, according to Shea Fontana, the episode's animation has to go through final retakes. It finally premiered on September 12, 2015. However, the episode had premiered internationally before the United States (see below). Before the official U.S. announcement, series executive producer Tom Ruegger has said "The Rock of Sages" would premiere in the United States in September (see first trivia item below).