A wealth of secrets are unravelled - not least the origin of bubbly milk - and everything that was known at Hunderby is turned upside down.

The British Comedy Award-winning series returns as Julia Davis's malevolent housekeeper Dorothy attempts to get her claws into master Edmund.

Hester tries to drive a wedge between Helene and Graham. Edmund is caught in a compromising position, so Dorothy comes up with a self-serving plan to save his bacon.