Alex is trap into somewhere which both supergirl and she don’t know. A man is arrested and he demand for exchange Alex for his father out of prison. Alex disagree with this agreement then, she has a private talk with Maggie.

Supergirl S02E18, Lena’s ex-boyfriend come to their city to show his big step in nano-technology which will help to erase all diseases. Lena join with Kara and the truth turn be out that they are in danger.

Supergirl S02E17, Aliens attack National City with the intention of collecting a large bounty put out on Supergirl.

Supergirl S02E16, When Alex and Maggie are sleeping together on the couch, and Kara and her boyfriend kiss on the other couch too. They found out that their TV are interferenced by someone or something.