Men being interviewed and paraded in front of the camera before their bloody execution.

After 'confessing' to the crime of opposing ISIS and failing to declare allegiance to the terror group's bloodthirsty leader Abu Bakr al-Baghdadi, the men are led out into a desert clearing where they are forced to their knees and each man executed by a different masked member of the ISIS.

The video which titled “Repent before Being Overcome” is Hollywood-style graphics and was released by the lesser known Damascus branch of the ISIS Group but bears all the high-tech hallmarks of the terror group's other slick and professionally edited murder videos.

This video shows that that the three terrorists groups remain fierce rivals despite fighting against Syrian army as a common enemy.

The murder of fighters loyal to Al Qaeda's Syrian branch - known as the Nusra Front - comes despite the fact the terrorists groups have worked together on several operations in recent months.