Watch Online Free on Watchseries. A documentary feature film that follows Darien EMS-Post 53, the only ambulance service for the town of Darien, CT. This organization covers one of the deadliest stretches of highway off of I-95 and is rated one of the top in the nation-volunteer or paid-and it's run and operated by high school students. Shot over the course of a year with an exclusive and intimate lens into a 40 year old organization that was a part of the birth of emergency medical service, High School 911 takes you on an epic journey with unlikely heroes: Teenagers. It begs the question: What are teenagers actually capable of when given the opportunity by the adults in their lives?