There's high drama from the Land of Oz tonight as another Dorothy leaves the competition for good. Whilst the girls wait nervously for the result they'll entertain us with spectacular group performances including a musical mash up. The girls will also be sent on a secret mission, and the search for Dorothy's canine companion Toto begins in earnest, as we see how the nation's dogs fared at the open auditions. The two girls with the fewest public votes must perform again in the dreaded sing off, but who will Andrew Lloyd Webber save and who will be sent packing over the rainbow?