The "Patrol" is seen chasing a row-boat containing river pirates. The pirates are pulling at the oars with all their strength, but a few shots from the Police Boat weaken their nerves and they give up. When the "Patrol" comes up near them, it lowers a dory and a number of policemen make the capture. As the pirates are landed on the Police Boat a fierce fight takes place between them and the police, but the latter overcome the offenders and land them safely on the boat.