Later this month, the four CW superhero shows will crossover yet again in a two-night event. This year’s crossover is titled “Crisis on Earth-X” and the official plot description for the event has debuted online and reads as follows:
“Barry (guest star Grant Gustin) and Iris’s (guest star Candice Patton) wedding brings the gang together, but things go awry when villains from Earth-X…
