A man stands chatting to a bouncer at a nightclub door when a stranger lashes out at him.
The attacker then drags the man's unconscious body into the middle of the street in front of an approaching car.
The club bouncers do little to stop what is going on.More stories from Today Tonight
The attacker goes on to punch and kick another victim while the first man lays unconscious on the road.
The attacker is an Australian Navy crewman, leading seaman Bosuns mate, Matthew Evans.
Evans is a big drinker who also worked as a bouncer.
Reece Curtis is another victim, bashed senseless by Evans after an alcohol fuelled night in October last year.
Michael Campbell is from Victims of Crime Northern Territory and he deals with seriously attacked people every day.
"It's more common in the Northern Territory than any other state or territory in Australia. Assaults like this are more common than any other western nation," Campbell said.
Bouncers feel powerless to stop these attacks in fear of their own life.
HMAS Coonawarra is the navy dockyard in Darwin. It is the base for northern command.
Last year in December, Evans pulled off an amazing heist. He drove into the base where he works, stunned a guard on a patrol boat and threatened him with a knife.
Evans walked out with two Remington shotguns and 12 Browing semi-automatic pistols.
The total value was worth more than $8000. Evans was going to sell the guns to a Rebel Motorcycle gang leader.
Evens confessed to all his crimes in December and was sentenced to a minimum two and a half years in jail for assaults and gun theft from a commonwealth property in court today.
He is also banned from drinking alcohol for three years after he gets out.
As for Evan's victims, they're all suffering from the unprovoked attacks.This reporter is on Twitter at @RichoTT7