clipped from soapnet.go.com

Still damp from a steamy shower hook-up, Patrick and Robin rush to the ER to tend to a pediatric patient. Epiphany alerts the staff to an incoming head trauma. As the staff waits for the ambulance, Max drives up with Jason and an injured Spinelli, who has shot himself in the foot. The ambulance soon arrives, but the paramedics are hysterical with laughter because of a gas leak on board. When Cody, an Iraq war veteran with post traumatic stress, starts to light a cigarette the ambulance explodes and pummels Patrick to the ground, unconscious, and the unidentified passenger seems to be dead.