The Great Wild Woolly has the hiccups. Bill and Corky try to help him, but the hiccups keep coming. When Mrs Whistlehead's sheep also get hiccups, Bill and Corky seek the help of Cedric the scientist. / Tricky persuades Ned to go for a ride in Bill and Corky's go-cart - without Bill or Corky's permission! But things get even worse when Tricky admits he's never driven a go-cart before!