This book has an ideal premise for a military sci-fi adventure: a hotheaded and impulsive cyber racer named Ryan Fall runs afoul of the law. But, his talent for high-speed maneuvering leads the government to offer him a choice: serve in an advanced combat mech program, to fight against an alien invasion force.

With little choice, and his own adrenaline addiction and competitive nature driving him, Ryan accepts, and is soon mustered into military training. Naturally, his “rebel without a clue” attitude leads him into plenty of clashes with the authorities. But then, that’s partially why they wanted him: as an outsider, he’s willing to think outside the box, and challenge their assumptions. And that is something desperately needed against the inscrutable alien enemy that is threatening to attack.

I imagine any MilSciFi fan will need no further convincing to pick this up. But, just in case…

There are plenty of exciting action sequences in this book, from the early racing scenes to the huge mech battle in the final sequence. On that basis alone, the book certainly earns its military sci-fi name. But what really makes the book are its characters, especially the supporting cast. I confess that Ryan himself was not my favorite; I tend not to like characters who are reflexively disobedient. But, Ryan has his reasons. More on that shortly.

The characters I really did like were Ryan’s immediate superior, the distant Captain Eleanor Ryder, whose icy demeanor masks a past trauma and a desire for revenge. I also loved General Matthews, the stern but fair officer who takes the burden of leadership seriously, but never loses a fundamental affection for those under his command. Both of these characters were great, and I enjoyed all of their scenes. Especially when Matthews is holding forth on the burden of responsibility and being accountable for one’s actions.

Which brings me back to Ryan’s devil-may-care behavior. There’s a reason he acts like he does, and it’s so he can learn and grow over the course of the story. Since military sci-fi adventures are likely to be read by the same demographic as Ryan is in–thrill-seeking young people–there is a message in this story that’s important for folks in that group to learn. Not that most of them will, any more than does Ryan, who, no matter how many times he is told something, doesn’t learn it until he has to experience it for himself. Still, it’s commendable of the author to try.

This is exactly the kind of thing I like in military science-fiction: well-crafted action scenes with deeper themes woven into the story. Highly recommended to fans of the genre.