Behind-the-scenes look at the making of Doctor Who. Catherine Tate returns as the unstoppable Donna Noble. In her search for The Doctor, Donna finds herself face-to-face with the mighty Miss Foster and a larger-than-life threat against mankind. With the tension rising, the programme gets up close and personal with the Doctor's latest companion from her first days on set through to her battle against an army of sinister Adipose. Features interviews with Tate, David Tennant and Sarah Lancashire.