Fairies, pixies, selkies… Ireland's myths are awe-inspiring. …Unless they're trying to kill you.
When Fionn and his family are suddenly targeted by these creatures, they are struck by everything but awe.
While Aidan and Fionn have to deal with Grannus and his monsters, Cara, Aoife and Púca try to persuade Sirona to help them. But the goddess is stubborn and mistrustful…