It starts with a low strings note, which is followed by the piano melody from the Halo 3 Announcement Trailer. Next comes the beginning melody of the Halo 3 E3 2007 Trailer, also a remake of the Halo 2 song Unyielding. At around 0:45 seconds, drums take over with a melody. Strings continue to play an accompaniment in the background. At 2:00 seconds, drums play a loud note, and Leonidas Returns, a re-recording of the song Leonidas from Delta Halo Suite, begins to play. Choir and strings are the main melody. It runs for 4:35 seconds.