Anything can happen to anyone, anywhere, at any time. Wouldn't you rather know that you had done everything in your power to have prepared yourself for that moment when something goes wrong? None of us plan to fail, but we may fail to plan.

In Sentinel, author Patrick McNamara provides an instructional guide filled with survival techniques for the family. Drawing from his background as a special-operations agent for twenty-two years, McNamara discusses the importance of being the protector of the family and provides a host of techniques, strategies, and procedures to ensure...