Two of the great episodes of the Russell T. Davies era of Doctor Who features the Dalek’s trying to blow up reality. It’s a “kitchen sink” episode where you have a lot coming at you. These episodes feature some great characters such as Captain Jack Harkness, Donna Noble, Dr. Martha Jones, Mickey Smith, Jackie Tyler, Rose Tyler and the great Sarah Jane Smith. These are the two episodes that begins the end of David Tennant’s tenure as “The Doctor”