Catherine Tate's iconic character Nan hits the big screen as she goes on a wild road trip from London to Ireland with her grandson Jamie (Mathew Horne) to make amends with her estranged sister Nell (Katherine Parkinson).

The Irish Mob tells the story of crime boss Val Fagan and the dark world of gangland Dublin, he leads a violent bloody and ruthless gang who are the main target of Garda detectives after an audacious cash depot robbery.