The aqueduct police had many duties to perform, and continual vigil was the price of order, owing to the fact that many dangerous aliens were in the territory they guarded. On one occasion the captain receives an anonymous warning that the men in a certain section of the works were planning violence because certain concessions they demanded had been refused. The captain called upon one of his brightest young men to find out if there was any truth in the statement. The patrolman disguised himself, secured work as a laborer and soon became on friendly and confidential terms with his associates. He learned that the warning was true, communicated with his captain by phone, and agreed to meet a party of police that night at a certain spot in the road and lead them to the conspirators. One of the criminals, however, was suspicions, and had secretly trailed the patrolman, learning that he was a spy. That evening a number of the men attacked the detective while he was walking along the road, ...
Moving Picture World synopsis