The guy went into cardiac arrest. The rescuer monitors his core as he carries the defibrillator and AMBU. The guy's heart stops again. The compressions begin, deeper and deeper. The defibrillator charges and discharges continuously on his chest. Eventually he recovers it, the heartbeat returns and with it the breath as well. You have to take him to the clinic and hope his heart doesn't stop again. Deep and numerous compressions, defib and Ambu! For lovers of Male Resus