Did Kara and Lena find out the truth?
On Supergirl Season 4 Episode 18, the friends made their way to Stryker island with the aim of finding out how they could defeat Lex.
Meanwhile, Kara tried to find out more information about Lex at the prison.
However, she quickly realized that her decision to befriend a nosy prisoner was not a good one.
Elsewhere, Kelly encouraged James to talk to someone for his PTSD.
Who did he turn to?
Use the video above to watch Supergirl online right here via TV Fanatic.
Catch up on all your favorite shows and reviews and join in the conversations with other fanatics who love TV as much as you.
Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.