Time and the Rani The TARDIS is forced down on the planet Lakertya by the Rani where the Doctor regenerates into his seventh body. Masquerading as Mel, the Rani tricks the Doctor into helping her further her plans to take control of the universe. Paradise Towers Arriving in Paradise Towers, the Doctor and Mel find that the high-rise apartment block fails to live up to its name. Warring gangs battle it out in the corridors, murderous cleaning robots are on the prowl, and something sinister is hidden in the basement. Delta and the Bannerman Joining a group of alien tourists for an unplanned stop at a 1950s holiday camp in Wales, the Doctor and Mel discover that one of the holidaymakers is being pursued by the ruthless Gavrok and the Bannerman, who are determined to make her race extinct.