MacCumhaill is a tale of a vigilante who assumes himself to be the reincarnation of the mythical Fionn MacCumhaill. He is obsessed and convinced that modern day Ireland is completely over run by crime and violence and will do anything he can to stop this trend continuing.

The story of Frieda, a young girl growing up in strife-torn late 1960's Derry, and her attempts to have a normal adolescence despite the violence which surrounds her.