Sabotaggio!

River Patrol. An organization of vigilantes founded by O’Bannion who, after having rid the Port Allegany river basin of the outlaws and of the Indians, levy taxes on the owners of the boats that travel the river. Greg, a friend of Zagor’s, does not accept their protection and suffers some attacks. Thus Zagor organizes another river expedition to make the men of the River Patrol take a false step...