Watch Siren Season 3 Online
Watch Siren Season 3 full episodes online, free and paid options via our partners and affiliates.
On Siren Season 3 Episode 10, Ryn and Ben confront Tia in an undersea battle between the mermaid tribes in an effort to try and rescue Hope.
On Siren Season 3 Episode 9, Tia unleashes a deadly attack on Bristol Cove while Ryn, Ben, and Maddie race to find a cure for Xander’s mysterious illness.
On Siren Season 3 Episode 8, Ryn, Ben, and Maddie must protect Bristol Cove from Tia’s army, while, Ben’s injections are producing unexpected results.
On Siren Season 3 Episode 7, Ryn, Ben, Maddie must recruit new allies in the fight against Tia who obtains dangerous weapons she plans to use in her fight.
On Siren Season 3 Episode 6, Ryn discovers a refuge of injured mermaids that escaped Tia's violent takeover while Ben and Xander do battle with Tia's troops.
On Siren Season 3 Episode 5, Ryn returns to land to explore human motherhood while Maddie and Robb come across a gruesome discovery, and Ted confronts Helen.
On Siren Season 3 Episode 4, Ben and Maddie help Ryn guide her surrogate though a life-threatening delivery, and Helen and Xander deliver a hybrid corpse.
On Siren Season 3 Episode 3, Ryn seeks help only to learn the secret existence of her unborn child and Ben sets out on a dangerous path to help his mom.
On Siren Season 3 Episode 1, as an old friend comes to visit Helen, a new mermaid arrives leaving Ryn questioning everyone and their motives.