The modern series of Doctor Who (revived in 2005) did not have a standard "Season 7 Episode 18." Series 7 consisted of 13 regular episodes and several specials, with the finale being Episode 13, " The Name of the Doctor ".
If you are looking for modern Series 7 content, the episodes are typically numbered 1 through 13. Some databases include specials in their numbering, but none reach 18. Doctor Who subtitles English S07E18
In this episode, the Doctor is exiled to Earth and working with UNIT. He becomes embroiled in "Project Inferno," an attempt to drill into the Earth's crust to find a new energy source. June 13, 1970. The modern series of Doctor Who (revived in
The drilling releases a primordially dangerous green slime that transforms humans into monsters. The Doctor is accidentally transported to a parallel universe where the project is further along, and he must find a way back to save his own world from a similar catastrophe. In this episode, the Doctor is exiled to