As the threat of invasion lessens, the towns people become lax. Mainwaring orders Operation Wake-Up, dressing up the platoon members as fifth columnists and telling them to act suspiciously. Eventually, the Eastgate platoon is called in to deal with them.

As part of a Wings for Victory campaign, the platoon decides to stage a reenactment of the battle between Saint George and the Dragon. The ARP wardens, though, have been planning the same thing.