An innocent young mouse lies murdered in a moonlit field as the screech of an owl echoes across the ripening corn. The Deptford Mice have escaped the horrors of Jupiter's lair and sought refuge in the countryside. But once again they must face terrifying evil as they are embroiled in a series of horrible murders. At first the simple country mice suspect Deptford newcomer Audrey – but the truth turns out to be far more sinister.