Anna Lenai and Melissa Carlson are on their way to Salus Prime: a low-tech planet in the grip of the Ragnos Confederacy.

Together, they must build a resistance movement to overthrow Ragnosian rule and prevent their enemies from gaining a stronghold from which to attack Leyria. Things get complicated when Melissa is forced to carry on alone. Despite her inexperience, she is determined to lead the Resistance to victory against a powerful enemy.

Meanwhile, Jack Hunter must assemble his own band of rebels on Leyria, when the tyrannical government of Jeral Dusep begins targeting his friends and family. Back on Earth, Claire Carlson hopes to escape the turmoil she has seen over the last few years. But the sinister Overseers are watching her.

The galaxy-spanning war heats up in The Firing Line, the twelfth book in R.S. Penney's Justice Keepers Saga.