10 Best Episodes of Siren

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.

Written by Sophie and last updated on jan 28, 2023.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

Siren - S1E10

#15 - Aftermath (Season 1 - Episode 10)

In the season finale, the enchanting siren song takes hold of Ben and Decker. Meanwhile, Dale must answer for the escalating crime in Bristol Cove.

The episode was rated 7.69 from 910 votes.

Siren - S2E4

#14 - Oil and Water (Season 2 - Episode 4)


Ryn decides they need to find another solution for housing mermaids as the pack dynamics remain precarious. Ben becomes a mentor to Levi as he tries to learn how men behave on land.

The episode was rated 7.69 from 561 votes.

Siren - S2E5

#13 - Primal Instincts (Season 2 - Episode 5)

Ryn continues to try to teach the other mermaids to be more human in order to better assimilate, but some are starting to resist her, causing Ryn to wonder if she herself is becoming too human. Maddie finds herself in a dangerous situation trying to help her mom. Meanwhile, Ben and Xander reconcile in order to work together to get the mermaid pack back into the water.

The episode was rated 7.70 from 560 votes.

Siren - S3E3

#12 - Survivor (Season 3 - 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 mother. Xander tries to establish himself in his new career. Helen consults with Eliza to help contact Sarge.

The episode was rated 7.70 from 282 votes.

Siren - S3E8

#11 - Til Death Do Us Part (Season 3 - Episode 8)

Ryn, Ben and Maddie must protect Bristol Cove from Tia's army. 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.

The episode was rated 7.70 from 253 votes.

Siren - S3E2

#10 - Revelations (Season 3 - 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.

The episode was rated 7.72 from 295 votes.

Siren - S1E7

#9 - Dead in the Water (Season 1 - Episode 7)

When Ryn is taken in for questioning, Maddie rushes to her rescue. Meanwhile, Ben and Xander return to the deep sea to search for answers, only to be met by an uninvited guest.

The episode was rated 7.73 from 1049 votes.

Siren - S2E16

#8 - New World Order (Season 2 - Episode 16)


Ben faces a choice that has rippling consequences amongst mermaid, hybrid and human alike, as the truth about mermaids is exposed.

The episode was rated 7.73 from 414 votes.

Siren - S3E5

#7 - Mommy and Me (Season 3 - Episode 5)

Ryn returns to land to explore human motherhood. Maddie and Robb come across a gruesome discovery. Ben experiences mysterious side effects. Ted confronts Helen.

The episode was rated 7.74 from 257 votes.

Siren - S3E9

#6 - A Voice in the Dark (Season 3 - 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.

The episode was rated 7.75 from 243 votes.

Siren - S2E6

#5 - Distress Call (Season 2 - Episode 6)

Dale copes with the fallout from Maddie and Ryn’s encounter with the man from Susan’s past, while Katrina continues to persuade the rest of the mermaid pack to get on her side, even if that means brute force against both mermaids and humans.

The episode was rated 7.76 from 530 votes.

Siren - S3E7

#4 - Northern Exposure (Season 3 - Episode 7)


Ryn, Ben, and 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.

The episode was rated 7.83 from 264 votes.

Siren - S3E6

#3 - The Island (Season 3 - 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.

The episode was rated 7.87 from 273 votes.

Siren - S2E8

#2 - Leverage (Season 2 - Episode 8)


Mermaids and humans join forces in a radical plan to stop the oil company, but their efforts have a devastating effect. And facing an uncertain future, Ben, Maddie and Ryn come together for a romantic farewell.

The episode was rated 7.88 from 553 votes.

Siren - S3E10

#1 - The Toll of the Sea (Season 3 - 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. Helen and the hybrids help restore order. Ted struggles to accept Ben's reality.

The episode was rated 7.98 from 241 votes.

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