Release Message:  The Rani has opened a hole in time, allowing her access to the Doctor's timeline. She uses this to cycle through the Doctor's lives, causing him and his companions to jump back and forth between past and present incarnations. Featuring Sophie Aldred as Ace.

Description:  Dimensions in Time is a charity special crossover between the British science fiction television series Doctor Who and the soap opera EastEnders that ran in two parts on 26 and 27 November 1993. It was filmed on location at Greenwich and the EastEnders Albert Square set. It features several of the EastEnders stars of the time. Produced for the Children in Need charity, following Doctor Who's hiatus in 1989 this special was the only dramatisation broadcast in celebration of the show's 30th anniversary. The Rani has opened a hole in time, allowing her access to the Doctor's timeline. She uses this to cycle through the Doctor's lives, causing him and his companions to jump back and forth between past and present incarnations. Her intention is to capture all of the Doctor's selves in a time loop, trapping him in London's East End; she has already captured the First and Second Doctor in the time hole. This causes the Fourth Doctor to send a message to his remaining selves, warning them of the Rani's plan: