This is the shocking moment a group of teenagers were set upon by a gang of hooded louts as they enjoyed dinner at a fast food restaurant.
Now police are using video footage of the McDonald's assault to try and bring the thugs to justice.
Officers are investigating the violent attack on two boys in Clydebank , Scotland, after the footage was shared online.
The 45-second clip shows the two victims being approached by a number of older youths as they sat down to eat on Friday night.
They covered their faces as they carried out the attack in West Dunbartonshire.
Two of the gang threaten the defenceless boys before raining blows on them as they desperately tried to avoid the punches.
The footage of the attack has been condemned after it was widely shared across social media .
Now police are using the video to try and catch them.

Police Scotland have confirmed they are looking into after outrage online.
A spokesperson for the force: “We received a report of an assault in Clydebank McDonald's at around 8pm on Friday.
"Enquires are ongoing."