Hamtaro hears that Laura and her classmates are having an evacuation drill at school. When he tells the other Ham-Hams, they decide that it would be a great idea to practice evacuating from the Clubhouse, in case of an emergency! And what luck! Panda happens to be in the process of digging a series of escape tunnels in preparation for floods. So the Ham-Hams go exploring in Panda’s new tunnels, mapping their emergency exits out of the clubhouse.