"Supergirl" Season 2 Episode 12 promises to be filled with action and love as Kara Danvers faces two returning threats, Lillian Luthor and Metallo. However, fans may also get to see different kinds of love just in time for Valentine's day. Kara is set to defend Lena Luthor who is said to be the culprit behind Lillian's prison break while Team Sanvers is said to celebrate Valentine's Day for the first time.

As previously reported by MobilenApps, this season of "Supergirl" will see returning villains and Metallo, a strong cyborg created by CADMUS led by Lillian, is one of them. "Supergirl" Season 2 saw them being arrested in the earlier episodes but this time, the duo is back to maybe plan another CADMUS project. But their escape from prison is not the main highlight of the episode, it's actually Lena.

Accused as the one responsible for Lillian and Metallo's escape, the police arrested Supergirl's dear friend. It should be Kara's priority to take them back in custody and penalize the culprit for their escape. However, even with alleged substantial evidence, Supergirl will not believe that Lex Luthor's sister can do such a thing according to The Reporter Times.

Meanwhile, this episode will also open another discovery involving Lena's past. "Supergirl" Season 2 Episode 12 spoilers suggest that the show will reveal how she became part of the Luthor family through flashbacks. Exciting, isn't it?

"Supergirl" Season 2 Episode 12 spoilers also point that Alex Danvers and Maggie Sawyer will purportedly spend time together to celebrate Valentine's day. Dubbed as Team Sanvers by the fandom, the couple may give this episode a lighter feel like they usually do. Are you excited to see how they plan to celebrate their first Valentine's?

"Supergirl" Season 2 Episode 12 air date is on Feb. 13. Entitled "Luthors," fans should not forget to catch this episode on The CW at 8 p.m. ET. Check out the teaser below.