In the last episode of ‘Supergirl’, Supergirl came in contact with red kryptonite, which changes her personality and makes her do evil things. In order to bring down the rogue Supergirl, Hank Henshaw had to reveal himself as J’onn J’ozz, AKA the Martian Manhunter. This, of course, brought some trouble for the DEO, seeing as their top guy was actually one of the people they were looking for, and now they are on a giant witch hunt to find J’onn.
J’onn then tells us how he met Kara and Alex’s father, Dr. Jeremiah Danvers (Special guest Dean Cain):
Back at CatCo, Cat Grant (Calista Flockhart) is having an awful day and Supergirl’s approval rating is way down thanks to that red kryptonite in the last episode. On top of that, Kara is sick and Cat doesn’t understand the concept of a sick day. Winn (Jeremy Jordan) offers to help but when Siobhan texts, he has to leave:
That text sent Winn over to Siobhan who is also having an awful day. Siobhan (Italia Ricci) was fired from CatCo because she tried and she entirely blames Cat and Kara. Winn tries to give her some helpful advice which Siobhan turns into an idea of revenge:
This episode is definitely leading up to some big things for next week’s Flash episode, but this back story is going to be important. Siobhan turns into one of the two female villains that Supergirl and Flash will be facing off against on next weeks episode.
Supergirl continues with the episode 17 called “Manhunter” tonight March 21, 2016, at 8:00 PM EST on CBS.