Siren 3×10 Promo “The Toll of the Sea” Season Finale

Siren 3×10 “The Toll of the Sea” Season 3 Episode 10 Promo (Season Finale) – In an effort to save Hope, Ryn and Ben confront Tia in an undersea battle between the mermaid tribes. Maddie and Robb work to find a cure for Xander, while Helen and the hybrids help restore order. Ted struggles to accept Ben’s reality.

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