Horrific video shows a father and son ganging up to beat an Aboriginal boy 'for spitting on his daughter' 

• The Aboriginal teen is punched repeatedly by the son as the father yells abuse
• Sickening footage shows the boy begging for forgiveness while being attacked
• The father says he 'deserves what he gets' and threatens to smash in his face

An Aboriginal teenager in Port Augusta has been thrown to the ground and violently attacked by the brother and father of a girl he allegedly spat on. 

The boy was chased down by the father-son duo in a sickening video uploaded to Facebook on Monday by the victims aunty.

The slender teenager first faces a series of shoves from the son, with the father threatening to 'smash his f***ing face in' if he retaliates. 

'Tell him to leave me alone then,' the defenseless teen yells while being thrust backwards in a choke hold. 

'Nah you deserve what you get mate,' the father says.

After being smashed into a concrete wall and thrown to the ground at the hands of the son, the father then demands the boy to apologise 'for spitting on his daughter'.

The son continues to throw punches into the sides of the victim, who can be heard repeatedly screaming, 'I'm sorry'.

As the son continues to unleash his aggressive wrath, the father halts the attack momentarily to direct the victim onto his knees.

'Who else are you sorry to? Sorry to my daughter? To his mum? You better f***ing mean it,' he bellows while standing above him. 

'You know what's going to happen to your f***ing famliy if I ever hear you say anything again, you know what's going to f****ing happen?

'I'm going to come to your f***ing house mate and it's going to be f***ing hell, you got it?'.'

The son shoves the defenseless boy onto the bitumen as the father continues yelling threats. 

'Look at me in the f***ing eye, you f***in got it?,' he howls while removing sunglasses from his eyes.

'You spit on my daughter again, I'm gonna f***in cave your head in, you got it c***, yeah?.'

Finally released from the son's grip, the teen leaps to his feet and walks away swiftly as the father continues hurling threats in his direction.     

The assault was reported to police and the son has been arrested, with police working to track down the father, Welcome To Country reports. 

Locals allegedly recognised the man's work uniform and have made complaints to his employer.