Who returned to Bristol Cove?
That was addressed on Siren Season 1 Episode 5 as faces from the past reappeared in the town, and it was unclear who they planned on saving.
Meanwhile, Ben investigated some suspicious overfishing and tried to find out whether it was linked to the mermaids.
Also, Decker continued his mission to find the escaped mermaid and prove that he still had a lot of pull in the town.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.