 
    Breaking2
        
        7.3
        55 min
    
    
        After six months of scientifically advanced training, three of the world's most elite distance runners set out to break the two-hour marathon barrier. These pioneers go on a global trek to defy the unthinkable and break the two-hour feat, from testing in wind tunnels and running labs in the United States, to balancing training with their day-to- day lives in eastern Africa, to the final heart-pounding race in Italy.
    
    
            Country:
            
                United States of America
            
        
        
            Genre:
            
                Documentary
            
        
        
            Released: 2017-09-20
        
        
            Production:
            
                National Geographic
            
        
        
        
            Tags:
            
     
         
         
         
         
         
         
         
         
         
        