From the most remote locations to even our own backyard, danger and destruction can strike at any moment, and survival depends on how well you are prepared and how much you know the enemy. The author of the book is a retired member of the elite American SEALs unit, and thus this manual draws information from the experience and unique skills of a secret agent to dramatically increase your chances of staying alive, whether you are facing a terrorist assassin or an apocalypse scenario.

The hundred deadly skills described in the book are entirely based on low or zero technology tools because complicated instructions are the last thing you need when facing an immediate danger, and include:
- Creating an everyday carry bag
- Avoiding an ambush
- Escaping from a car trunk
- Making an improvised gas mask
- Neutralizing digital tracking devices
- Deceiving facial recognition software
- Defeating an opponent with a knife
- Surviving a grenade attack
- Hiding and extracting data from everyday photos