Kara has been going through a tough time ever since Mon-el has to be sent away. When he comes back everything is even more confusing for the both of them.
Mon-el has left Kara over and over again and she doesn't know how much more she can take it. First he left Earth, then he left for the future again, and there was even a time where he died. But when a new threat to National City brings them back together, how does she confront him? Who will leave this time?