Charity overhears Debbie criticising her to Megan, and feels guilty over letting Sarah down. Chas tries to snap her out of it by suggesting a visit to Prague, and offers to accompany her, while Diane is suspicious over the B&B's new guest, and recruits Pollard to find out who it is. Aaron gets in trouble when the other inmates find out who his father is, and Rishi invites Priya and Rakesh to return home