The enemy is advancing quickly while the Coalition falters. The time for desperate measures is at hand. One possible solution lies in an ancient and mysterious alien device known as a Portal-a doorway into Earth's past. The Earth Security Council believes that if a key event in history can be prevented from ever happening, then the ultimate outcome of the war can be changed in the Coalition's favor. Theoretically. But theories have a way of being wrong. With no way to predict the results of such a mission with any certainty, Admiral Icarus Hansen, chief of Solfleet Intelligence, a man haunted...

Solfleet Intelligence Special Agent Dylan Graves has passed though the ancient Tor'Roshan device known as a Portal and traveled 22 years into Earth's past. His mission: Infiltrate the staff of the Mars Orbital Shipyard and ensure the vessel suspected of being instrumental in the destruction of the starcruiser Excalibur in that time period remains docked there. Prevent the destruction of the Excalibur, thus altering specific events in the future and hopefully changing the outcome of the war against the Veshtonn Empire-a war that Earth and the Coalition were on the verge of losing. It is a...