Brian and Lise are the presenters of a new television adventure series in the making. Twenty-somethings, athletic, good-looking, they have all the combined talents to engage in the rigorous challenges of the outdoors and present them to a television audience.
Brian is at home in the air and on land, while Lise is a water-woman. The series presents challenges to both in their boundaried adventures. Marcas, the director is the manipulator, seemingly calling the shots.
Both up-close and panoramic, Ar Muir is ar Sliabh is both a dialogue with the landscape and seascape of Ireland, and the growth of trust, perhaps even of intimacy, between two characters. But they are also pursued, even stalked, by the indoor ghosts of their past.
In a deeply-moving final scene, in an underwater cave off the coast of Clare, they have to come to terms, urgently, with their own fault-lines for survival.