Eileen uncovers yet more corruption at the hands of her nemesis Frank Paton, but attempts to thwart him stir up a hornet's nest that causes chaos among the residents of Shieldinch. Zinnie becomes unsettled by Dan's increasingly erratic behaviour, while Angus worries that Dan is becoming too reliant on his girlfriend and warns her not to let the doctor take advantage. Elsewhere, Buster regains his mojo with Ellie.