The world’s most lethal odd couple – bodyguard Michael Bryce and hitman Darius Kincaid – are back on another life-threatening mission. Still unlicensed and under scrutiny, Bryce is forced into action by Darius's even more volatile wife, the infamous international con artist Sonia Kincaid. As Bryce is driven over the edge by his two most dangerous protectees, the trio get in over their heads in a global plot and soon find that they are all that stand between Europe and a vengeful and powerful madman.

When a strong-willed princess refuses to wed the cruel sociopath, she is kidnapped and locked in a remote tower of her father’s castle. With her vindictive suitor intent on taking her father’s throne, the princess must save the kingdom.