1 Michael McCann - Enemy Unknown (Menu Music)
2 Michael McCann - Breaking Ground (HQ Act I)
3 Tim Wynn - First Contact
4 Michael McCann - Interception
5 Michael McCann - Terror Upon Us
6 Michael McCann - Ready For Battle (Choose Squad)
7 Roland Rizzo - Hidden Movement
8 Michael McCann - Vigilo Confido
9 Michael McCann - Mission Complete
10 Tim Wynn - A Survivor Returns
11 Michael McCann - The Alien Underbelly (HQ Act II)
12 Roland Rizzo - The Fate Of The Earth (Mission Control)
13 Michael McCann - Hyperwave Uplink
14 Roland Rizzo - Otherworldly Dissonance
15 Michael McCann - Resilience Of Man
16 Michael McCann - Arrival (HQ Act III)
17 Michael McCann - Discovering The Gift
18 Tim Wynn - The Gollop Device
19 Michael McCann - The Volunteer
20 Roland Rizzo - Depths Of The Hive Mind (Temple Ship)
21 Michael McCann - Snap Shot
22 Michael McCann - End Game
23 Michael McCann - Alien Pact
24 Michael McCann - Our Last Hope (Finale)