In this powerful video, a police officer’s quick response becomes a lifeline for a family in crisis. When an officer spots a car stalled in the middle of a busy interstate, he investigates, only to find a 15-year-old boy desperately trying to help his father, who is having a heart attack behind the wheel.

Without a moment’s hesitation, the officer pulls the man from the car and begins CPR right there on the road. Every second of this life-saving moment was captured on the dashboard camera of an Iowa State Trooper. Watch this incredible display of bravery and skill!