 During Neil Grayling's (James Gaddas) reign as Larkhall's 43rd Governing Governor, Fenner is promoted to Governor of G-Wing making him 43rd in a line of 42 others.During Series 4, Fenner finds himself the subject of (unwanted) sexual advances from Neil; after Fenner succeeds in having Neil fired, he takes over as The 40th Acting Governing Governor of Larkhall, putting him in charge of the entire prison.True to form, Fenner abuses the power granted to him in his new position and uses it to further his own ends, rather than to assist with the rehabilitation of inmates.