Handsome, clever Charlie rules his gang with an iron paw. For years he, Snip, Herbie and Spud have been the kings of pest control in and around the village of East Foxmould. But Charlie has a Secret. Horrified when a gang of girl terriers move in on their patch, Charlie's gang decide that they must DO something. They swear to defeat Dora, Allie and Meg, and their owner, ten year old Emily. While Charlie and his gang plot and plan, Dora's third daughter Beattie falls into the wrong hands. Desperate to be rescued from the horrible Darren, Beattie longs to be back with her rightful owner. Will Charlie help? Meanwhile Rat Hall looms - dilapidated, crumbling, and simply full of rats. Emily's father wants to turn it into holiday flats, and needs a gang of terriers for the job. Who will he ask?