The Enid Blyton Adventure Series S01 E05 The Mountain of Adventure

The holiday this time is to be in the Black Mountains. Allison is going to paint and stay at a chalet, Bill will be working, but visiting, and Hans will take the children on a pony trek for a couple of days. With the mystery of a rumbling mountain, roaming wolves, and a mad genius who plans to rule the world, the trip does not turn out as peaceful as expected.