Thomas & Friends is a children's television series about the engines and other characters working on the railways of the Island of Sodor, and is based on The Railway Series books written by the Rev. W. Awdry. This article lists and details episodes from the thirteenth series of the show, which was first broadcast in 2010. This series was narrated by Michael Angelis for the UK audiences, although Michael Brandon narrates the episodes for the US audiences. This was Marion Edwards' first series as executive producer. Following the release of feature-length special DVD Hero of the Rails in September 2009 and the theatrical and video releases of select episodes. This series introduces computer-generated imagery as a replacement for the show's long-standing model animation, as well as a voice cast rather than an individual actor's narration.