Wholock's Apprentice was the fourth and final episode of Series 2. It featured the return of Doge, AND Clara Oswald. It premiered on July 9th, 2015. In this episode, Wholock has lost Doge, but is there still a chance that he can save his life? To find him, he goes to 3W. Wholock might be in his own hell, and he might actually be there forever.