ABC Nightline

EMT's in cities across America answer the calls for help from their communities. In Austin, Texas, responders run point in a massive multiple car collision and need to triage more victims than can fit into their ambulance.

In Baton Rouge, Lacey and Stacey restrain a patient suffering from violent hallucinations after overdosing on the synthetic drug Mojo.

Yonkers first responders Alex and Jamal face unexpected challenges when they respond to a call for a man with a broken ankle who fell from a fire escape.

In Austin, Luddy and Finch practice parking lot medicine when they respond to a heroin overdose on a 19-year-old patient.

In Austin, Texas, a man is shot by someone he trusts and Kim and Audrey must wait until the gunman is apprehended before they can begin treatment.

In Baton Rouge, a brawl erupts in the back of Meghan and Dee's ambulance when an overdose patient wakes up swinging.

Baton Rouge paramedics rush to the aid of a man attacked by his girlfriend with a box-cutter knife. Gunshots fired in Yonkers send Ariel and Cunningham to save a man down.

The opioid epidemic grips the nation as Baton Rouge EMS teams scramble save lives. A heatwave in the south makes bad calls worse .

It's a race against the clock in Baton Rouge for Brandon and Coop to save a man's life after he's been struck by a bullet in the chest. In the middle of an empty parking lot.

Patrick and Danelle from Yonkers, New York, go above and beyond to help a schizophrenic patient who's had a hard time being taken seriously in the past.