Take a look at more new footage, plus images from the "Supergirl" episode "Legion Of Super-Heroes", written by Derek Simon, Eric Carrasco and directed by Jesse Warn, airing January 15, 2018 on The CW:
"...struggling to heal from injuries inflicted by 'Reign' (Odette Annable), 'Supergirl' (Melissa Benoist) remains in a dreamlike state, unable to be reached.
"'Mon-El' (Chris Wood) recruits one of the 'Legion' members, 'Brainiac-5' (Jesse Rath), to try to bring her back.
"Meanwhile as Reign continues her rampage across the city...
"...the 'Legion of Superheroes' try to stop her..."
'The Legion of Super-Heroes' was created for DC Comics by writer Otto Binder and illustrator Al Plastino, debuting in "Adventure Comics" #247 (April 1958).