More than four hundred men and women serve aboard the Starship Enterprise NCC-1701, "boldly going where no man has gone before." What are their stories? We know of Kirk and Spock, but what of those who live, and sometimes die, under their command? Those are the best and brightest of the Federation, men and women of exceptional courage and skill.

But not all of them can be trusted.

Lt. Jon Anderson is the newest security officer aboard the U.S.S. Enterprise. He joins the crew at a time of mounting tension between the Federation and the Klingon Empire. Previous battles have been inconclusive, but Starfleet Command fears that the Klingons are gearing up for a major offensive. The Enterprise would be on the front lines of an all-out interstellar war.

But Lieutenant Anderson has a secret: he is actually a Klingon infiltrator assigned to sabotage Starfleet from within. His first mission: kill Capt. James T. Kirk.