Duncan joins doctor Diana - whom he has helped by lancing a patient's boil very roughly - in protesting against the hospital swimming pool being demolished to make way for a new wing. Sir Geoffrey promises to keep the pool but goes back on his word and Duncan, Diana and other protesters lie down in front of the bulldozer coming to get rid of the pool. The driver is none other than the man with the boil and the bulldozer ends up demolishing Sir Geoffrey's car. (thetvdb.com)