How did Kara feel about Lena's ex-boyfriend coming to town?
That was addressed on Supergirl Season 2 Episode 18 when Lena asked Kara to attend a conference with her.
Meanwhile, Kara tried to woo Snapper at the event, but things took a crazy turn when she tried to act like his reporter.
Also, Jack's new nano-technology became a cause for concern when it seemed too good to be true.
Use the video above to watch Supergirl online to get caught up with the latest developments for the characters on this hit CW series.
Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.