The 'Canal Brigade' of the Vienna Police Department patrol the famous sewers under the city.
Titles read: "In The Underworld of Vienna".
M/S of the 'Canal Brigade' rushing to get into a charabanc and driving off. Although they are dressed as normal sewage men, they are really members of the Vienna Police Department who patrol the famous sewers of the city.
Several shots of the armed policemen walking through the sewers, climbing down through manholes, patrolling underground and searching for a tramp who is looking for items of jewellery that people have lost down the drains. A long line of men walk through a river that flows under the city; they all carry lighted beacons.
The men are seen getting back into the charabanc on street level.