Tyler Barron is about to lead his fleet into a trap. He is sure the enemy is laying in wait, but he has no choice. After four years of unexpected calm along the front line, the Senate and the Hegemonic Council are demanding action, and the Pact’s commanding admiral has no choice but to set out on a mission to liberate the enemy-held regions of the Hegemony. While Tyler prepares for an offensive he believes can only end in disaster, Andi Lafarge is preparing to continue her quest for the mysterious weapon the doomed empire used to defeat the Highborn centuries before. 

Tyler Barron and his associates are divided, split between two courses of action. Barron doesn't believe in the desperate plan to eradicate the Highborn, the strange virus that has been created for that purpose, but may or may not be the exact formula used by the empire 300 years ago. There are too many possible problems...a small difference in the virus, a cure created by the enemy...for him to accept the plan. Barron commits instead to a traditional defense, even though he knows the chances of ultimate success are almost zero.

The Hegemony controls Megara, the Confederation’s capital. War has raged for five years. Millions are dead, vast fleets of ships have been destroyed. But in the stronghold where Tyler Barron and his comrades have gathered their allies and the last of their strength, a plan is being devised. Barron and his people have fought bravely, stubbornly, relentlessly, but the Hegemony has been too strong. Now, Barron is relying on the one source of strength that remains to him. Defiance.

Admiral Tyler Barron and the Confederation navy face a new threat, darker and deadlier than any that have come before. The Confederation has just concluded its war with the Hegemony, but now that power, so long the hated enemy, is calling for help, for the Confederation to join it to face a deadly invasion, one likely to subjugate all humanity. Barron must overcome his own resentments, and the resistance of the Senate, and find a way to lead his forces into battle once more. The odds are long, but the stakes couldn’t be higher, no less than a choice between survival and freedom.

Night is falling. The unstoppable Hegemony invasion has reached the very heart of the Confederation. Battle after desperate battle has been fought, and each time, the Confeds have been pushed back, columns of battered and blasted ship retreating from system to system. Now, they prepare to grimly defend the capital world of Megara, the very center of the Confederation. Tyler Barron prepares for what could be his final battle, a final desperate defense, one last chance to stem the tide of Hegemony conquest and subjugation.

The warrior culture of the Alliance has fragmented, and comrade fights comrade, brother kills brother. The Red Alliance forces, backed by the Union and its propaganda machine, have the advantage in numbers and position, and they are pushing forward, driving relentlessly toward the final attack. The Gray Alliance forces are weaker, trapped in the great Sentinel-2 fortress where they've established their headquarters. Their enemies have the larger fleets and armies, and control of the homeworld...but the Grays have Tyler Barron and Dauntless.

Terrence Compton is one of Earth's greatest admirals, a warrior almost without equal. Alongside his oldest friend and brilliant colleague, Augustus Garret, he and his forces saved Earth from invasion by the robotic legions of the First Imperium's insane computer Regent. There is just one problem. The First Imperium was held back by the disruption of the sole warp gate connecting the two domains...and Compton and 300 of his ships are trapped on the wrong side, surrounded by the Regent's vast fleets and cut off from Earth.

The fleet fights on...deeper. Farther into the black unknown of space. There is no other path, no way for the lost to go save forward. Admiral Terrance Compton's fleet is cut off from Earth, deep in the heart of the enemy First Imperium. A third of his people have died in the year his force has been fleeing from its enemies, but he is as determined as ever to find a new home for his people, a way to save his war-torn fleet.

War. The word spreads throughout the Confederation...the long-expected Union invasion has come. The enemy is strong, their fleets larger and more powerful than intelligence reports had predicted. They have broken through the forward defenses, sent the Confederation's proud fleets into an ignominious retreat.

A battle is coming, the greatest the Rim has seen in 10,000, a fight for freedom, for the future, for the very survival of all humanity holds dear. Tyler Barron and his comrades are ready for their greatest test, but even as they prepare to hold the line at Fortress Striker, to turn back the Highborn’s imminent attack, the enemy have opened another front, one far to the rear.