Part 1: Answering the call. Ordinary guy, extraordinary circumstances, Clay Headrick, Firefighter

The choice to serve, Keith Dempsey, Firefighter

Police of the woods and water, Jeremy Judd, Game Warden

Part 2: Enduring the trauma. Family of service, Katelyn Kotfila, Deputy

The confidence of camaraderie, Tommy Wehrle, SWAT Sniper

The Catch-22 of police work, Justin Heflin, Sergeant

Part 3: Duty of discernment. The watchdog, Vincent Vargas, Border Patrol

Do unto others, Steve Hennigan, LAPD

America's Sheriff, Mark Lamb.

Part 1: Answering the call. Ordinary guy, extraordinary circumstances, Clay Headrick, Firefighter

The choice to serve, Keith Dempsey, Firefighter

Police of the woods and water, Jeremy Judd, Game Warden

Part 2: Enduring the trauma. Family of service, Katelyn Kotfila, Deputy

The confidence of camaraderie, Tommy Wehrle, SWAT Sniper

The Catch-22 of police work, Justin Heflin, Sergeant

Part 3: Duty of discernment. The watchdog, Vincent Vargas, Border Patrol

Do unto others, Steve Hennigan, LAPD

America's Sheriff, Mark Lamb.