01:23 — Supergirl is forced to do battle with an unexpected foe and must risk everything – including her life – to prevent Non and Indigo from destroying ever (more…)
03:44 — Supergirl has to say goodbye to her sister.
01:53 — Supergirl and J'onn J'onzz head out on a mission to find Non.
03:16 — Supergirl and J'onn J'onzz try to stop Non and the ships energy wave.
03:13 — Siobhan's aunt tells her about their family curse.
03:07 — Supergirl and The Flash partner up to stop Silver Banshee and Livewire.
02:59 — After feeling Siobhan's wrath, Supergirl meets The Flash.
02:05 — Kara gains a new ally when the lightning-fast superhero The Flash (Grant Gustin) suddenly appears from an alternate universe and helps Kara battle Sio (more…)
02:12 — Kara turns on her friends and the citizens of National City after being exposed to Red Kryptonite makes her malicious and dangerous. Also, Cat appears (more…)
01:15 — Callen and Sam are shocked when an old acquaintance they thought had been murdered shows up and asks for their help. Their investigation uncovers a po (more…)
02:18 — Cat Grant wants National City to know that Supergirl is now a villain.
03:55 — Hank transforms in front of National City.
02:36 — Someone confesses to creating Red Kryptonite.
Max joins Caroline on a trip to visit her father in prison.
Season 1, Episode 18