At approximately 2118 hrs Company 3 and 7 were dispatched for a motor vehicle accident at the intersection of HG Trueman and Rousby Hall Road reported serious. Promptly Rescue 3, Ambulance 38 and Ambulance 37 responded to the call. Enroute dispatched advised that the collision was head on but all the patients were out of the vehicles. Rescue 3 arrived on scene and Captain 3 established command. After further investigation all patients signed refusals except one which was transported priority 3 for a check-up. Rescue 3 remained on scene to assist with clean up and cleared approximately 20 minutes later.