"Don't Forget the Diver" is the second episode of the fourth series of the British comedy series Dad's Army. It was originally transmitted on 2 October 1970. Synopsis On an exercise, the Walmington-on-Sea platoon come up with an ingenious plan to capture the windmill defended by the Eastgate platoon. Plot Captain Square and his two NCOs are having a drink in the local pub. Square tells the landlord the story of when he was with Lawrence of Arabia, fighting the Turks. He remarks that his golden watch saved him from dehydration – he left in his mouth for three days! He demonstrates this to the landlord just as Mainwaring and Wilson enter. Mainwaring is curious, and Wilson quips that he's 'watching his drink'. Square reminds Mainwaring of the big exercise on Sunday, and Square's sergeant remarks that all Home Guard platoons in the area are taking part. The following parade, the platoon meet up to discuss tactics. However, the Verger is snooping around, taking notes to deliver to Captain Square because he is fed up of the way the Walmington platoon treat him. The Eastgate platoon will be defending a windmill, and the platoon have to find a way of planting a dummy bomb in the windmill without being spotted. Jones suggests a tunnel, but that is soon cast aside. Wilson suggests an idea from a Shakespeare play he once saw, where the king dressed his troops up in bushes so they could attack the offending castle. Mainwaring thinks this is a good idea. Walker suggests a man in a diving suit to push a dummy log along the river to a convenient spot and then the 'log' can waddle over to the windmill and plant the bomb. Frazer announces that he has inherited a diving suit from a late friend of his, Wally Stewart, who died from the 'dreaded bends' due to being pulled up too quickly on his last voyage. It is eventually decided that Jones will be inside the dummy log and Frazer, in the diving suit, will push Jones along the river until he is level with the windmill, at which point he will give a tug on his lifeline. This will be the signal to announce the first diversion, which will be initiated by Walker and Wilson, by Mainwaring's bird warbler. The second diversion will be initiated by Godfrey and Walker. When Jones reaches the