Småtrollen och den stora översvämningen (Swedish)
Swedish: Småtrollen och den stora översvämningen (1945)
Finnish: Muumit ja suuri tuhotulva (1991)
Moomintroll and his mother are wandering throught the woods to find a place for their winter-sleep. On their journey they meet a little animal and Tulippa, who accompany them on their further way.
After some time they get on the track of the disappeard Moomin father ...