When the building of a massive dam is announced, the local farm animals believe that it will catapult their small country town into the twenty-first century. However, when Bruce the koala tells Dot that the dam will actually destroy their environment, she sets about trying to help her native animal friends. With both sides fighting for what they believe is right, Dot's plans to wipe out the dam are jeopardised by the local detectives Sherlock Bones and his offsider Watson the cat.
