Rocko is a wallaby who has moved from his native Australia to the United States. But life in the United States isn't as idyllic as he had hoped it would be, for he is surrounded by annoying neighbors, tons of laundry, and life's issues in general. By Rocko's side to help him over the obstacles and through the challenges life throws at him are his best friend Heffer (a dim-witted bovine), his canine companion Spunky, and his neurotic buddy Filburt.