Richard "Mack" Machowicz's Book Hits The Shelves | Deadliest Warrior | SPIKE

Deadliest Warrior Co-Host and ten-year Navy SEAL Veteran Richard "Mack" Machowicz knows what it takes to face tough challeneges in life, that's why he's got a book out to you let you know how.

Unleash the Warrior Within takes you through Mack's own personal steps to meet and exceed your lifelong goals and ambitions, and how to deal with the speedbumps that are in the way.