The destruction of California is at hand. Cassidy Hart and Chris Young have survived a dangerous mission into the heart of Sky City, a secret Omega base hidden deep in the mountains, but their vengeance has come with a price. The dark, ominous cloud of nuclear war threatens to destroy everything they love, and they are forced to make one final stand against Omega's western invasion force. San Francisco. Cassidy and her friends retreat to Alcatraz Island, regrouping with their lethal strike team, the Angels of Death. Their mission: infiltrate the most important Omega base on the west coast, and assassinate everyone they find there, including a new and dangerous enemy, the ruthless Omega leader Veronica Klaus. The clock is ticking. Ashes rain from the sky. Cassidy Hart must make a choice. What is more important? Victory, love or revenge? Omega is the enemy's name. Survival of the fittest is their game. Cassidy Hart will not stop until she has saved California...but will she be too late?