How did Supergirl feel about going up against Reign?
That was revealed on Supergirl Season 3 Episode 9 when mysterious symbols started popping up across National City.
Things took a surprising turn when someone Kara has become really close to is revealed to have a villainous streak that could be linked to a World Killer.
Meanwhile, the tension between Lena and Morgan Edge continued to rise, but which one of them made the first move?
Use the video above to watch Supergirl online right here via TV Fanatic.
Get caught up on all the latest drama now.
Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.