Dad's Army S04E02 - Don't Forget the Diver

The platoon participate in a training exercise in which their goal is to detonate a bomb inside a mill occupied by the Eastgate Platoon. Jones wants to dress up as a tree and creep up to the front door too slowly for them to notice; Fraser acquires an ancient diving suit and plants to infiltrate by water. Meanwhile, the Eastgate Platoon has recruited the Verger as their spy.