Artificial intelligence is our last hope of saving the war-ravaged Earth in this near-future science-fiction thriller. The most advanced soldiers in human history are about to become obsolete. Engines. Genetically modified warriors that keep the great Nova Alliance war machine churning against the enemy Coalition. Most days, Engines are all that stand between salvation and chaos. Led by legendary Engine Captain Akira Hayashi, Shadow Squad has fought on the frontlines for a decade. They are on the brink of victory when the Coalition launches a series of desperate and devastating attacks that cripple the Nova Alliance restoration sites vital to save the dying planet. As the sites burn and Earth’s hope of salvation fades, Shadow Squad is equipped with neural implants to connect them to Apeiron, the first hybrid human-AI entity. She is coded for what Captain Hayashi believes is an impossible task - peace. But war isn’t the only threat to the Earth. Apeiron has uncovered a deadly secret with implications that could end all life. This rapidly approaching threat can be stopped only if humanity bands together on what will become known as E-Day, a pivotal moment that will determine the evolution - or the extinction - of the entire human race.

Listening time 13 hours 54 minutes The war started and ended in a day. The machines won. Now the fight for survival begins.... E-Day: the moment the machines evolved and humans nearly went extinct. In the chaos, one million people escaped Earth and fled to a secret colony on the dark side of the Moon. Deep beneath the lunar surface, in the cold, they wait for the inevitable - a second attack that will wipe humanity out forever. Sergeant Tadhg Walsh is tired of waiting. He wants to fight back and return to Earth to search for Shadow Squad. But he has new orders from the Lunar Defense Corps: protect the colonies at all costs and forget about any survivors back home. Captain Akira Hayashi is one of those survivors, forced to heal from his injuries in a submarine while the planet burns. Shadow Squad won’t be hiding for long, but before they can don their armor again, they must find a safe haven to plan their attack. When they locate a research station in the Mariana Trench, their sub heads into the depths. What they find in the darkness changes everything they know about E-Day. On the Moon, the LDC will do everything in its power to keep the truth about survivors on Earth a secret, even if it means sacrificing the few for the many. On Earth, Shadow Squad will have to make tenuous alliances with old enemies to stand a chance against the enemy. If they can unite, they might just have a chance of stopping the machines from wiping out humanity on Earth and the Moon.

The final battle for humanity is about to begin... On the moon, Ronin Hayashi trains to protect the colonies from the inevitable invasion of the machines. While he prepares to stand his ground, Sergeant Tadhg Walsh is planning an escape mission to deliver a weapon to the resistance on Earth. At Neptune Station, Captain Akira Hayashi and Shadow Squad have returned from a deadly journey into enemy territory, where they learn the machines are building an army at an astonishing rate. After continued attempts to contact the Lunar Defense Corps for help, Shadow Squad accepts the hard truth—the LDC isn’t coming. With hope for salvation dwindling, Akira deploys on a desperate mission to find Apeiron, believing only she can stop Doctor Otto Cross from completing his reset of Earth. But Akira soon realizes they need more than just Apeiron. Shadow Squad must somehow reunite with Tadhg and the weapon he carries. Only then can Akira lead the charge against the machines in one last fight for the future of humanity.