After a martial artist collapsed and stopped breathing during a Jui-Jitsu class in Plymouth, MA, classmates Sergeant Reddington, Detective Ross, and Firefighter Robbins sprung into action. Reddington ran—barefoot—across the parking lot to a nearby gym, ripped an AED off the gym wall, and then ran back to the martial arts studio. There, the trio administered electric shocks and then performed CPR until EMS arrived.