Agent 9 is forced to team up with a new partner to take on a seemingly unstoppable new foe: a rogue agent who knows every trick in the S4 book.

"Master spy Twilight is unparalleled when it comes to going undercover on dangerous missions for the betterment of the world. But when he receives the ultimate assignment--to get married and have a kid--he may finally be in over his head! As Donovan Desmond is about to share a rare family moment with his son Damian, Twilight cuts in to meet his target face-to-face for the first time. Can Twilight find some way to endear himself to the inscrutable...