Cassie Bannerman is a nine-year-old girl who loves animals, especially her dog Ripper, who is always by her side. When Ben Stoppard moves into Abbotts Hill with his family and their English sheepdog, Cassie is determined to befriend them both. The four of them take part in the RSPCA annual fundraiser, the Million Paws Walk, and help round up a naughty runaway pup.
