Genesis of the Daleks

"Genesis of the Daleks" is a key *Doctor Who* story where the Doctor is tasked with preventing the creation of the Daleks, a ruthless alien race. Time travelers from the future send the Doctor back to 2150 to influence the genetic engineering process that leads to the Daleks' birth. He faces moral dilemmas, as the plans to exterminate a group of mutants could also lead to the Daleks' monstrous dominance. The story explores themes of morality, power, and the impact of changing history, ultimately revealing the origins of the Daleks and highlighting the importance of choice in shaping the future.