Check out the promo and press release for the next episode and final part of the ‘Armageddon’ crossover, that will airs on December 14.

THE EXCITING CONCLUSION TO THE FIVE PART ARMAGEDDON EVENT BRINGS THE RETURN OF MIA QUEEN – The conclusion to Armageddon presents an opportunity for The Flash (Grant Gustin) to end his lifelong battle with Reverse Flash (guest star Tom Cavanagh) for good, but the payoff could be too much for Barry and team to handle. Meanwhile, Mia Queen (guest star Katherine McNamara) drops in from the future looking to save a lost loved one, and she won’t let anything stand in her way.