Fireman Sam: It Came From the Sea / Come to Pontypandy

When Mike hears eerie singing and glowing lights in the sea near the lighthouse, he calls Agent Price and Agent Sparkes of The Why Files to check it out. / When filming a tourism advert about Pontypandy, Sarah gets carried away with her filming. When she climbs a mountain to get the perfect shot, she ends up stranded on a ledge.