With the animals' homes being destroyed by man, all of the animals of Farthing Wood meet in Badger's earth to try to find a way to survive. The latecomer Toad, suggests that they all journey to a nature reserve called White Deer Park, where he had passed by on his journey home. The animals eventually all agree to make the journey to this new haven once they take the ancient Wood Oath, of Mutual Protection. This Oath meant that everyone promised not to eat or frighten each other. Fox is assigned as their leader and it is agreed that they will meet by the Great Oak at midnight to begin their long journey. (thetvdb.com)