November 23, 2016: DC TV Crossover “Heroes vs Aliens” Promo #4

The CW has released yet another promo video for the 4-show crossover. The latest “Heroes vs Aliens” promo shows us Barry telling Oliver about the alien invasion, while Heat Wave has a problem calling Kara “Supergirl”.

The CW’s crossover event is kicks off at the end of the “Supergirl” episode airing on Monday, November 28.