The second season of The Witcher will premiere on Netflix UK on Friday December 17th, it has been announced. In addition to announcing the premiere date, Netflix also released the trailer and key art for season two. Fantasy series The Witcher will premiere on Netflix UK on Friday December 20th, it has been announced. The Witcher is an epic tale of fate and family. The story of the intertwined destinies of three individuals in the vast world of The Continent, where humans, elves, witchers, gnomes, and monsters battle to survive and thrive, and where good and evil is not easily identified.