I don’t care if Mary turns out to be a sweet woman who somehow had good reason (???!) to abandon her son, I still need everyone on the team (but especially Kara, Space Dad, and Alex) to be immediately and Extremely Overprotective and on the Offense the entire time she’s around.
I need Kara to be exactly as present as Winn was when Jeremiah showed up. I need Alex’s cold staredown. I need J'onn telling this woman exactly what his son- *cough* I mean- agent is worth.