One Good Day was the thirty-ninth episode of Series 25 and the 773rd episode of Casualty overall.
Linda's first day in charge is shambolic: she's hungover and dishevelled and the whole gang are against her. Attempting to get the nurses on side, Linda's wayward private life catches up with her in a mortifying way when one night-stand, Kevin, turns up at the hospital with a "surprise". Can Linda turn things around and get the team behind her?
Elsewhere, Zoe tries to get Dylan back to work, but he's feeling too guilty about Polly's death to enter the ED. But when a curious case turns up which has the team at loggerheads, Dylan's interest is piqued. Can the maverick doctor overcome his guilt and get back to what he does best?