A father, anxious for his son's financial well being, develops a special soda pop called Dopokoke which is laced with cocaine. Dopokoke is advertised as relief "for that tired feeling." The drink is a success, but the son becomes addicted to it, much to his father's regret. Loosely based on the allegations that the Coca-Cola company and other soft drink manufacturers laced their soda with dope.
D.W. Griffith
Director
Emmett C. Hall
Writer

Charles Hill Mailes
The Father, a Physician

Charles West
The Son

Blanche Sweet
The Son's Fiancée

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The Secretary

Robert Harron
At Soda Fountain

Dell Henderson
Dopokoke Factory Employee (uncredited)

Walter Hiers
At Soda Fountain (uncredited)

Alfred Paget
Dopokoke Factory Employee (uncredited)

Kate Toncray
At Soda Fountain (uncredited)
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