To nine-year-old twins Walter and Christopher, "Swampland" is the best video game ever! But when the boys start arguing over whose turn it is to play, Mama and Papa Bumble banish them to the great outdoors. In the scary outside world full of nature and girls, the twins must find a place for a secret clubhouse and come up with a set of rules for their new, ultra exclusive club. The laughs and adventures continue in this second part of the Bumble Brothers graphic novel saga.