An Australian film crew busted up some ne’er-do-well taggers and got busted up themselves.

The crew was working on a documentary about taggers when they came upon a guy spray painting a traffic box in North Hills, CA. The man fled, but came back soon after with a friend and proceeded to beat one of the crew members with brass knuckles. And they got it all on tape.

The two suspects have been apprehended and arrested.

From NBC Los Angeles