Medic

 
Series aired: 1954 - 1956
Video from Internet Archive
 
Primetime TV  
 

Flash of Darkness

Season 1, Episode 17
February 14, 1955
 
Dr. Styner and the other members of his mobile first aid unit are called away from their jobs for what they think is just another Civil Defense drill, but it turns out to be an actual emergency.  
Medic
Available on DVD