|The Fight for London|
The track was loosely inspired by Murray Gold's "I Am the Doctor" from Doctor Who Series 5. It was initially released in April 2011, but replaced by a revised and expanded version in May. This reworked version features an introductory passage, and greater emphasis on the violin backbeat.
The track is comprised of two major motifs: A quick, piano-led action rhythm interspersed with a grander, descending series of notes that also appear in the revised introduction, and in a softer form in the track "Gone Below". Both motifs feature in slower modes in "Fleet", which follows directly from "The Fight for London".