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The coastal town of Bristol Cove is known for its legend of once being home to mermaids. When the arrival of a mysterious girl proves this folklore all too true, the battle between man and sea takes a very vicious turn as these predatory beings return to reclaim their right to the ocean.
Streaming, rental and purchase options
Checked Jul 22, 2026
Siren is available to stream on Disney+ and Hulu in United States. You can also rent or buy it from Google Play, Amazon, and Apple TV. Use the direct links below to open the provider.
The coastal town of Bristol Cove is known for its legend of once being home to mermaids. When the arrival of a mysterious girl proves this folklore all too true, the battle between man and sea takes a very vicious turn as these predatory beings return to reclaim their right to the ocean.
Choose an episode, then use the watch options above for the show.
Episode 1
As an old friend visits Helen, a new mermaid arrives leaving Ryn questioning their motives. Maddie learns the truth behind Ian’s death, as Ben fights for his mother’s treatments. While Xander is inspired to take on more responsibility.
Guest stars Gil Birmingham, Michael J Rogers, Javier Lacroix, Dayleigh Nelson, William Vaughan, Nitin Prasad, Nisreen Slim, Jamall Johnson
Episode 2
When another mysterious death is uncovered in Bristol Cove, Ryn suspects Tia. Maddie befriends a new acquaintance in Seattle. Helen warns the hybrids of trouble. Xander begins training and Ted revisits the past.
Guest stars Marilyn Norry, Rob McEachern, Nevin Burkholder, Xiomara Lopez, Sarah-Jane Redmond, Dion Riley, Donal Thoms-Cappello, Megan Danso
Episode 3
Ryn seeks help only to learn the secret existence of her unborn child. Ben sets out on a dangerous path to help his mom, while Xander tries to establish himself in his new career. Helen consults with Eliza to help contact Sarge.
Guest stars Sarah-Jane Redmond, Sibongile Mlambo, Yumi Ogawa, Donal Thoms-Cappello, Mark Ferns, Carolyn Anderson, Daniel Cudmore, Kiomi Pyke
Episode 4
Ben and Maddie help Ryn guide her surrogate though a life-threatening delivery. Helen and Xander deliver a hybrid corpse to Beth at The Ranch. Xander faces danger on the high seas during a ride-along with the Bristol Cove water patrol.
Guest stars Daniel Cudmore, Kiomi Pyke, Kaaren de Zilva, Christopher Logan, Michel Issa Rubio, Megan Danso, Caroline Cave, Deniz Akdeniz
Episode 5
Ryn returns to land to explore human motherhood. Maddie and Robb come across a gruesome discovery. Ben experiences mysterious side effects and Ted confronts Helen.
Guest stars Tammy Gillis, Jill Teed, Sedale Threatt Jr., Megan Danso, Vonnie Bennetto, Ary Katz, Jodi Pongratz, Nicole Anthony
Episode 6
Ryn discovers a refuge of injured mermaids that escaped Tia’s violent takeover. Ben and Xander get caught in a battle with Tia’s troops. Maddie feeds Robb half-truths to secure his discretion. Ted explores his family lineage.
Guest stars David Cubitt, Aylya Marzolf, Brendan Fletcher, Caroline Cave, Patti Kim, Ambika Vas, Seigfred Perolino, Stephanie Aigbe
Episode 7
Ryn, Ben, Maddie must recruit new allies in the fight against Tia. Helen seeks answers when she’s haunted by Donna’s spirit. Tia obtains dangerous weapons she plans to use in her fight. Xander struggles to make amends with Annie.
Guest stars Hugo Ateo, Georgia Waters, Deniz Akdeniz, Sisse Marie, Ben Sullivan, Mark Acheson, Richard Ian Cox, Arvind Johal
Episode 8
Ryn, Ben and Maddie must protect Bristol Cove from Tia’s army. Meanwhile, Ben’s injections are producing unexpected results, which alarms both him and the others. Xander juggles best man duties at Calvin’s wedding while also helping Helen.
Guest stars David A. Kaye, Curtis Lum, Chad Rook, Hannah Levien, Millan Tesfazgi, Tiffany Lonsdale, Katie Keough, Deniz Akdeniz
Episode 9
Tia unleashes a deadly attack on Bristol Cove. Ryn, Ben and Maddie race against time to find a cure for Xander’s mysterious illness, while anticipating Tia’s next move. Baby Hope returns to land to reconnect with Ryn.
Where to watch Siren
Episode 10
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. Season finale.
Where to watch SirenEpisode information updated Jul 23, 2026
Eline PowellRyn
Alex RoeBen Pownall
Fola Evans-AkingbolaMaddie Bishop
Ian VerdunXander McClure
Rena OwenHelen Hubbell
Ron YuanAldon Decker
Alvina AugustViv
Andrew JenkinsDoug Pownall
FreeformUnited StatesMore shows like Siren.
