SUPERGIRL faces a disturbing new enemy in “Changing” previews!

Kara El-Zor’s latest alien opponent is the stuff of nightmares in previews for tonight’s Supergirl episode, “Changing”!

They not to get freaked out as this promo shows the steps through which Parasite takes over a human body and decimates the world. Thankfully, Kara is there trying to put a stop to it all– but perhaps she’ll need some help this time!

https://www.youtube.com/watch?v=fTy7KT4kC98

After the fright, the first clip from the episode starts off surprisingly light-hearted. Kryptonians like Supergirl can’t just get drunk, but we have a feeling that Mon-El hooked her up with something out of this world. Of course, that puts her in less-than-ideal shape when a call for help comes through.

https://www.youtube.com/watch?v=0qsfB7Xsobg

A behind-the-scenes look at the episode with executive producer Ali Adler shows us the big fight, but also focuses in on Alex’s coming out and how she goes about sharing the news with her sister.

https://www.youtube.com/watch?v=3Q99fFN4iVs

“Changing” airs tonight on The CW.

The Guardian debuts to lend a hand after a parasite alien drains Supergirl (Melissa Benoist) of her power. Mon-El (Chris Wood) considers a less than desirable new career which then leads him to contemplate his motives. Alex (Chyler Leigh) struggles with a new reality. Andrew Kreisberg and Caitlin Parris wrote the script based on the story by Greg Beranti. The episode was directed by Larry Teng.