For over five thousand years, there were always three binding rules for all Masters of Sinanju: 1) Payment is always in gold. No checks. 2) There is only one Master and one pupil. 3) No woman will ever be trained in Sinanju. Sunny Joe Roam will throw the last two rules out the window in order to fulfill his tribe's oldest commitment. He will train both Stone Smith and his half-sister Freya Williams in the deadly art of Sinanju, ushering in a new era for the tribe. But will the lethal brother-sister duo be enough to help their new boss Benjamin Cole stop the Great Mexican Ninja Army from invading the southwestern United States?

SUGAR AND SPICE …and carbon-fiber bones. Her name is 14. All she really wants is a new best friend, but it's hard to make friends with someone you're trying to kill. Stone and Freya must face off against the bionic killer while inside a nuclear death trap!

A figure from Sunny Joe's past seeks revenge by hiring Stone and Freya for a video game where there are no cheat codes…and death is for real!

The Desteen Nation will stop at nothing to reclaim their land. For eight generations, the Desteen have vowed revenge against the Sinanju. For eight generations, their hatred has simmered. For eight generations, they have trained…and now, the time has finally come to fight! With Sunny Joe stuck in federal court, will Stone, Freya, and their new friend Ruby Gonzalez be quick enough to stop an armored regiment from destroying the reservation? Or will War Feather fulfill the Desteen’s ancient prophecy, and eliminate the Sinanju once and for all?