Did Katrina go a step too far?
On Siren Season 2 Episode 6, the mermaid wanted to get the whole mermaid pack on her side.
In doing so, she was going against Ryn's wishes and putting the citizens of Bristol Cove in mortal danger.
What did Ryn do when she learned that her sister was trying to go over her to get power?
Elsewhere, Maddie had another tense debate with her mother about her drinking.
Did she finally manage to get through to her?
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.