Supergirl
Under the Bridge
Kara and Clark head to the industrial district where Metallo is unloading equipment in episode 2x02 “The Last Children of Krypton”. Brian is being kidnapped by Cadmus when Alex and Maggie show up to rescue him and gather intel in episode 2x15 “Exodus”. J'onn and Kara watch M'yrnn as he marvels at Earth in episode 3x03 “Far from the Tree”.
Appears in 3 additional episodes.
Call to Action
Kara is thrown to the ground by the dragon and gets a tip from Alex which allows her to calm it down.
The Quest for Peace
The Monitor welcomes a green martian who has a vendetta against J'onn to Earth.
Still I Rise
Mitch spots Nxyly who is hiding under a bridge without her powers.