Now Playing: CD 1. 2. Light Is Green

Now Playing: CD 1. 3. Kamchatka

Now Playing: CD 1. 4. Return to the Fold

Now Playing: CD 1. 5. Rock and Ice

Now Playing: CD 1. 6. Argent Moon

Now Playing: CD 1. 7. Scavengers

Now Playing: CD 1. 8. In Absentia

Now Playing: CD 1. 9. Meridian Crossing

Now Playing: CD 1. 10. Unearthed

Now Playing: CD 1. 11. Unconfirmed Reports

Now Playing: CD 1. 12. Keeper of Secrets

Now Playing: CD 1. 13. Cavalier

Now Playing: CD 1. 14. Crossed Paths

Now Playing: CD 1. 15. Untethered

Now Playing: CD 1. 16. Skeleton Crew

Now Playing: CD 1. 17. Siren Song

Now Playing: CD 1. 18. Enemy of My Enemy

Now Playing: CD 1. 19. Honor's Song

Now Playing: CD 1. 20. Warrior World

Now Playing: CD 1. 21. Covenant Prayers

Now Playing: CD 1. 22. Cloud Chariot

Now Playing: CD 1. 23. Sentry Battle

Now Playing: CD 1. 24. Worldquake

Now Playing: CD 2. 1. Advent

Now Playing: CD 2. 2. Walk Softly

Now Playing: CD 2. 3. Genesis

Now Playing: CD 2. 4. Dominion

Now Playing: CD 2. 5. The Trials

Now Playing: CD 2. 6. Sentinel Song

Now Playing: CD 2. 7. Crypt

Now Playing: CD 2. 8. End Game

Now Playing: CD 2. 9. Reunion

Now Playing: CD 2. 10. Blue Team

Now Playing: CD 2. 11. Jameson Locke

Now Playing: CD 2. 12. Osiris Suite, Act 1

Now Playing: CD 2. 13. Osiris Suite, Act 2

Now Playing: CD 2. 14. Osiris Suite, Act 3

Now Playing: CD 2. 15. Osiris Suite, Act 4