The LDV (future Home Guard) is still wanting for military supplies. So Mainwaring can't resists illegally 'requisitioning' anything of use in the Peabody Museum of Historical Army Weapons when it closes for the war. Alas its curator, Lance Corporal Jones' loony, mean 88 year-old father, puts up a crafty, tenacious defence. The loot proves worse than disappointing.