Heart of Stone is a two - part documentary series narrated by Brendan Gleeson. Episode 1 Symphony of Life and Episode 2 Song of our Ancestors.

Ep 1, Symphony of Life: Episode One moves through the natural cycles of the seasons, witnessing spectacular scenes from the natural world, discovering Celtic rainforests and exploring complex subjects, like the formations of the rocks and underground caverns and mysterious disappearing lakes on the Burren. Episode 2 , Song of our Ancestors: locates clues written in the stones, tombs, and underground caverns that populate the Burren and that help us to travel back in time to reveal fresh secrets of the human story. We discover what Ireland might have looked like when the first nomadic big-game hunters came here. We follow the three distinct populations that lived in Ireland in prehistoric times and unravel the secrets of this unique and mysterious landscape and those who lived on it and the impact we have had on the landscape in the past and present times. It asks if prehistoric farmers irreversibly altered this landscape and if modern Irish society is descended from those who first lived here over 10,000 years ago.—Katrina Costello