Slowly and painfully, he opened his dreary eyes. Is this what his life was destined to lead up to? Of course not, it had been intended to go in a completely different direction, but something had gone terribly wrong… or right… He didn't fucking know, and he was quite possibly the last pony in Equestria to know right from wrong.
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Born with an inexplicable wing deformity deemed a medical anomaly, Sergeant Hargreave Oblitus Filius is selected to join the ranks of the nation's most highly classified branch of its military: The Lunar Guard. Though most information regarding the special forces is locked away in manila envelopes labelled "TOP SECRET", the elite soldiers are renowned for their black operations, deadly combat effectiveness, and most importantly, their unquestioning loyalty to Princess Luna, whom they report to directly.

The challenges a Lunar soldier faces are soon made apparent when a group of highly trained and dangerously equipped terrorists make an attempt on Luna's life. Rising above the call of duty and earning the notice of the Divine Night herself in the process, Hargreave is sent on a mission to get to the bottom of the attack, and hunt down those who threaten the Dark Princess.

Upon the discovery that the cryptic condition behind his wing deformity was no coincidence, alongside a gruesome government cover-up, Hargreave finds himself under the gun when he unknowingly becomes the catalyst for a conspiracy against the Royal Sisters that goes up to the highest level of national security, along with a deadly plot for revenge one thousand years in the making.