While on vacation in Ireland, Gannon and Wyatt visit medieval castles, climb the Cliffs of Moher, and explore the ancient Newgrange monument. But after Gannon kisses the Blarney Stone their adventure takes a dramatic turn. While volunteering on a farm to connect with their Irish roots, they learn that a deadly blight is wreaking havoc on the Irish farmland. Determined to uncover the true cause, the courageous explorers embark on a secret mission to gather evidence against a ruthless suspect, but soon find themselves running for their lives. Ultimately, they must rely on their wilderness survival skills and Gannon's ''gift of gab'' if they hope to bring justice to their ancestral home.