After the disastrous attack on the Manticoran home system by unknown forces, the Royal Manticoran Navy stands on the brink of collapse. A shadowy enemy seek to conquer the Star Kingdom from without while from within, forces from Manticore's own government seek to discredit and weaken the Navy for their own political gain. It's up to officers like Travis Long and Lisa Donnelly to defend the Star Kingdom but the challenge is greater than any they have faced before.