It's Christmas Eve and nearly time for the evening carol service. The mice live in a mouse hole in the children's play area inside the church. There is a problem Oh dear - the angel on top of the christmas tree has fallen upside upside down Mr and Mrs Mouse don't know what to do. The people of St Peter's Church, The Drive, don't know what to do either There is simply no time left to strip the tree, put the angel up the right way and rebuild the tree properly. The carollers are on their way to the service But the mice children know what to do....