When the CW’s Supergirl returns for its mid-season premiere there will be a few different heroes defending the city while Kara Danvers recovers from her defeat at the hands of Reign. The heroes who will be defending the city are none other than the Legion of Superheroes, and among these heroes from the 31st century is Brainiac-5, who was just revealed in a first look from the show.
The new episode is slated to feature Brainiac-5 trying to accelerate Kara’s recovery while the Legion helps to defend the city. The first look also provides a glance at the Legion’s uniforms which don’t seem to look much like their typical comic costumes. Rather they appear to have a look similar to the costumes in the original X-Men films.
Source: Discussing Film
Supergirl returns on January 15, 2018