Digger Digby: Digby wants to find 'an australia' but where is it

DIGBY the Boxer dog is a thief and always in trouble, Hector a border collie and Henrietta a tortoiseshell cat try to help him. Digby,digs a hole to find 'an Australia' what is it? and where is it? and why does he want to find it ? Digby's adventures lands him in more trouble and problems. Hector and Henrietta and Digby must find a way to make Mister Green, Digby's owner 'less angry' with him. There must find a solution and soon. Time is running out for DIGBY .
Digby turns Detective something is going on - can he prove he's a clever dog?