Watch Supergirl Online: Season 4 Episode 9
Paul Dailly at .Was it really the end of the line for John Deegan?
On Supergirl Season 4 Episode 9, Supergirl, The Flash, and Arrow returned to Star City, and realized they would need to go to another Earth if they wanted to take down the villain once and for all.
Meanwhile, Felicity questioned whether she should have noticed that there was something off with Oliver, and someone had the best answer.
Also, Barry and Oliver questioned whether each should keep their new abilities, or give them back.
Use the video above to watch Supergirl online right here via TV Fanatic.
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Paul Dailly was an Associate Editor for TV Fanatic.Follow him on X.