"The Parting of the Ways" is the thirteenth episode and the season finale of the revived first series of the British science fiction television programme Doctor Who. The episode was first broadcast on BBC One on 18 June 2005. It was the second episode of the two-part story. The first part, "Bad Wolf", was broadcast on 11 June. In the episode, the Dalek race invades the human satellite Satellite Five in the year 200,100, intending to make more Daleks by harvesting dead humans. The alien time traveller the Ninth Doctor (Christopher Eccleston) plans to use the satellite's transmitter to try to destroy every Dalek, while at the same time sending his travelling companion Rose Tyler (Billie Piper) home to keep her safe. The episode featured Eccleston making his final appearance as the Ninth Doctor and marks the first appearance of David Tennant as the Tenth Doctor. Plot The Ninth Doctor uses the extrapolator on the TARDIS to generate a protective shield around it as he pilots the TARDIS to rescue Rose from the Daleks. The Doctor discovers the Daleks' Emperor survived the Time War and escaped to Earth in a crippled ship, where it rebuilt the Dalek race by harvesting DNA material from humanity. Returning to Satellite Five, Jack uses the extrapolator to shield the top six floors of the station and sets up defensive positions. The Doctor attempts to create a delta wave generator which will destroy the Daleks, but also life on Earth. The Doctor tricks Rose into going inside the TARDIS, and remotely directs the TARDIS to return Rose to her home time to keep her safe. The Daleks invade the station, killing everyone in their path. Rose notices the words "Bad Wolf"—words which also exist on Satellite Five — on her estate and realises that they are a message rather than a warning. She convinces Mickey and Jackie to help her open the heart of the TARDIS. Mickey uses a truck borrowed by Jackie to pull the panel on the console open and Rose is bathed in the light of the TARDIS. The Daleks reach the top of Satellite Five, killing Jack and Lynda in the process. They file into the control room while the Doctor contemplates firing the delta wave, eventually deciding he cannot do it. Before the Daleks can kill the Doctor, Rose arrives in the TARDIS, wrapped in the glow of the time