The Warrior Code - Warriors Series, #3

DARWIN WAS WRONGZeb Carter takes on Mexican cartels as he protects a pair of sisters and their deadly secret. In the kill-or-be-killed world he enters, it isn't the fittest who survive. It is the most lethal. The Warrior Code is the third thriller in the Warriors Series. Each novel can be read stand-alone. The Warrior Code has Ty Patterson's signature storytelling with pedal-to-metal pace, shocking twists and rollercoaster thrills.
If you like Lee Child, Vince Flynn and David Baldacci, you'll love Ty Patterson.