Mickey Mouse Clubhouse (2006)

S4E12 Sea Captain Mickey

Mickey and his friends embark on an adventure at Mickey Lake, determined to uncover a hidden treasure beneath its surface. They hop into a submarine for an exciting exploration, and as they dive deeper, Professor Von Drake’s sonar device picks up a significant object lurking at the lake's bottom. Intrigued and eager to find out more, the gang prepares to investigate this mysterious find.