Polly decides to cut her hair and join the army to search for her brother. She thinks she's done quite well on the belching, farting and nosepicking, but forgot about the other thing that separates boys from girls - and makes amends with a pair of socks. The platoon in under Sgt Jackrum, who takes them under his wing. He's a larger than life character, who (in current business speak) manages upwards effectively (in other words, bosses the poor Lieutenant Blouse about like nobody's business). The platoon have a few lucky scrapes and soon it turns out that they are being searched for by an entire army and their legend has grown in the telling. Unfortunately, the legend turns sour when they rescue the rest of the army that are imprisioned in the castle keep - the rest of the army not being impressed at being rescued by a bunch of girls. As with any discworld novel, there's a twist in the tale, but lets just say that the girls are as good as boys at being boys, but are often better at being themselves.