[[Category:th century| *]] [[Category:s| *]] [[Category:th century decades]] In the 41st century, the First Doctor became involved with the Space Security Service's investigation into the Daleks, Mavic Chen, and the Time Destructor, and uncovered a plot to destroy the Solar System. The planet Kembel and the Dalek fleet stationed there was destroyed. (TV: The Daleks' Master Plan) This sparked the Great War which lasted over a millennium. (PROSE: The Evil of the Daleks)