It could be a scene from any front room or coffee shop. Four young men laugh and joke as they charge their phones and catch up on their week.

Together, however, the quartet makes up Britain’s most notorious Islamic State of Iraq and the Levant (Isil) jihadists; torturers, beheaders and serial killers who left the UK to fight in Syria.

The Telegraph has obtained extraordinarily rare, secretly-filmed footage of the fighters, seen here all together for the first time; unmasked and unguarded.

The men are Mohammed Emwazi, the fighter from London who executed two Britons and three Americans in grisly propaganda videos, Junaid Hussain, Isil’s number one hacker and husband of the UK’s most-wanted woman Sally Jones, Reyaad Khan, who recruited dozens of Britons to fight for Isil, and Christian convert and sniper Raymond Matimba.

They met regularly at this cafe in Raqqa, the capital of their so-called caliphate, off al-Sharakisa street in the centre of the city, which is now understood to be the nerve centre from where they and other foreign fighters plotted attacks on the UK and the West.

The 90-second video was filmed in November 2014 by a Syrian man who smuggled it out of Raqqa earlier this month after his neighbourhood was liberated by US-backed forces.