Fed up with his family, Ralph hops onto his toy motorcycle (given to him by Keith in the first book, The Mouse and the Motorcycle), and speeds down the road away from the Mountain View Inn toward Happy Acres Camp, where he encounters Sam, a nosy watchdog, and is captured by a boy named Garfield (or Garf) and kept as a pet. Separated from his motorcycle, Ralph must endure life in a cage with an annoying hamster named Chum. Over time, Ralph and Garf form a relationship similar to the one Ralph and Keith had in the original book in the series.