Twitch is a twelve-year-old with three pet chickens, four pigeons, swallows nesting in his bedroom and a passion for bird-spotting. On the first day of summer holidays, he arrives at his secret bird-watching hide in the local nature reserve to find police everywhere: a convicted bank-robber and murderer has broken out of prison and is hiding in Aves Wood. Twitch soon finds himself entangled in the hunt for the dangerous prisoner. Can he turn his talents for bird-spotting to detective skills, and find the missing loot?