A quiet summer playing pirates takes a surprise turn for FRANKLIN with the appearance of his world-traveling AUNT LUCY and her adventure-seeking goddaughter, SAM. A mysterious treasure map leads Franklin and his friends to Turtle Lake on a quest to find a long-buried talisman he hopes will cure his ailing GRANNY. Along the way, the adventurers enlist the aid of three unlikely allies: wise OLD TURTLE, the mischievous LITTLE CROW, and great, grumpy mountain bear, MR. GRIZZLY. With their help, Franklin unearths a lost treasure and in doing so, discovers the true meaning of family and friendship! Join everyones favorite turtle on an exciting adventure, full of twists and turns, as he learns that X doesnt always mark the spot and treasures sometimes arent what they seem...