It's the end ... of the worlds. The 5-episode crossover begins Sunday, December 8 on <a href="/TheCW/?refid=13&__tn__=%2Cg"> The CW</a>! <a href="/hashtag/crisisoninfiniteearths?refid=13&__tn__=%2Cg"> <span > #</span><span ><span>CrisisOnInfinit</span><wbr /><span ></span>eEarths</span></a>