The kids are pulled into an investigation when a weary yet eccentric traveller named The Doctor notices that things aren't adding up in South Park.
Crossover - South Park & Doctor Who - Rated: T - English - Adventure/Sci-Fi - Chapters: 14 - Words: 16,958 - Reviews: 35 - Favs: 30 - Follows: 30 - Updated: 1/26/2015 - Published: 11/29/2012 - 11th Doctor