Hamtaro - Season 1 Episode 48 Ham-Ham Clubhouse in Danger! Little Hamsters, Big Adventures
Overview: During the rainy season, the Ham-Ham’s want a change of atmosphere so they decide to redecorate the Clubhouse. After they finish, they try to go outside, but find that the door won’t budge, because a mole dug a hole while they were decorating. The mole-hole has brought mud & water into their tunnel, and it threatens to seep into the Clubhouse!