Smoke bombs, pyrotechnics, balaclavas and punch-ups - welcome to the world of the football Ultras. Inspired by European terrace culture, a new generation of young fans are making themselves heard inside, and outside, stadiums across the country.

But is there more to the social media driven sub-culture that has swept through Scottish football for the past decade?Are Ultras a menace or a force for good in a game searching for relevance in a corporate footballing landscape?

The three part documentary itself underlines just how varied the Ultras scene is - so broad, in fact, that any single attempt to define it is destined to fall short.

Narrator Mark Bonnar

Series Director Jordan Laird

Executive Producer Ian Greenhill

Series Producer Andy Maas

Commissioning Editor for BBC Scotland David Harron

Production Company Studio Something

Production Executive Kathryn Burnett

Production Manager Laura Jamieson

Series Editor David Hunter

Additional Editors Kieran Gosney, Kirsty McGrath, Sean Geddes

Director Of Photography Steve Cardno

Sound Post Production Savalas Post

Dubbing Mixer Kahl Henderson

Dubbing Editor Iain Anderson

Voice Over Record and Edit Eilidh Reid

Sound Post Supervisor Drew Gibson

Sound Post Coordinator Jay Newton

Colourist - Jon Bruce

Online Editor - Sean McLoughlin

Online Assist - Joe Martyn

Post Producer - Sean Ewins