The Curse of Oak Island episode focuses on the ongoing search for treasure on Oak Island. The team investigates potential connections between Norse explorers, the Knights Templar, and artifacts found on the island, traveling to L'Anse aux Meadows in Newfoundland for research. Drilling in the "Golden Egg" area reveals soft soil, suggesting a nearby structure, while analysis of an iron arrowhead points to a potential Viking origin. Further discoveries on Lot 5, including coins, bolster the theory of historical activity, potentially related to the Templars. The episode concludes with renewed hope that the treasure's location is being narrowed down.