amp series `` amp 1 messenger '' - in a distant galaxy , humans are on the run ... `` amp 2 private war '' - some were just born to lead ... `` amp 3 blitzkrieg '' - strike with surprise and speed ... amp 4 rebellion - watch your back human ... amp 5 colossus - who dares violate our space ... amp 6 siege - they come after dark ... amp 7 the core - the inside of knowledge ... amp 8 armageddon watch for the follow-on series entitled omega !