The BEST Episodes of Siren (2018)

Every episode ever - ranked by fan votes!

Last Updated: Mar 25, 2020

Network: Freeform

The coastal town of Bristol Cove, known for its legend of once being home to mermaids, is turned upside down when a mysterious young woman appears and begins wreaking havoc upon the small fishing town to look for her captured sister who was abducted at the hands of the local military. Marine biologists Ben and Maddie work together to find out who and what drove this primal hunter of the deep sea to land.


#1 - Leverage

Season 2 - Episode 8 - Aired Mar 14, 2019

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.

star 7.90
502 votes
Directors: Joe Menendez
Writers: Eric Wald

#2 - Entrapment

Season 2 - Episode 7 - Aired Mar 7, 2019

Tensions are rising following a shocking discovery. And living in a tank rather than the ocean is starting to have an adverse effect on many of the mermaids. Hoping to save her kind, and help her human circle, Ryn makes a deal with a complicated ally.

star 7.78
520 votes
Directors: Amanda Row
Writers: Zoë Green
Distress Call

#3 - Distress Call

Season 2 - Episode 6 - Aired Feb 28, 2019

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.

star 7.78
481 votes
Directors: David Grossman
Writers: Michael Gans, Richard Register
New World Order

#4 - New World Order

Season 2 - Episode 16 - Aired Aug 1, 2019

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

star 7.76
355 votes
Directors: Nick Copus
Writers: Emily Whitesell, Eric Wald
Dead in the Water

#5 - Dead in the Water

Season 1 - Episode 7 - Aired May 3, 2018

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.

star 7.74
1,023 votes
Directors: Nick Copus
Writers: Ian Sobel, Matt Morgan
Street Fight

#6 - Street Fight

Season 1 - Episode 9 - Aired May 17, 2018

Donna comes ashore with two other members of her colony to bring Ryn back home. When mermaids once again begin wreaking havoc throughout the town, Dale tries to put an end to it once and for all.

star 7.71
915 votes
Directors: Joe Menendez
Writers: Zach Ayers

#7 - Aftermath

Season 1 - Episode 10 - Aired May 24, 2018

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.

star 7.70
887 votes
Directors: Nick Copus
Writers: Emily Whitesell, Eric Wald
On the Road

#8 - On the Road

Season 1 - Episode 4 - Aired Apr 12, 2018

When the military facility goes on high alert, Chris manages to escape, but he’s not the only one who gets out.

star 7.70
1,319 votes
Writers: Elle Triedman
Primal Instincts

#9 - Primal Instincts

Season 2 - Episode 5 - Aired Feb 21, 2019

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.

star 7.68
513 votes
Writers: Liz Maccie
Oil and Water

#10 - Oil and Water

Season 2 - Episode 4 - Aired Feb 14, 2019

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.

star 7.68
513 votes
Directors: John Badham
Writers: Ian Sobel, Matt Morgan
Mixed Signals

#11 - Mixed Signals

Season 2 - Episode 11 - Aired Jun 27, 2019

Maddie and Ben contend with how to help Ryn knowing that in order to help Elaine get better, they will need to continue the procedures on Ryn. When one of the group gets sirened, there is more drive than ever to get to the bottom of how the siren song really works—further piquing the interest of the military in how Ryn can be of use to them.

star 7.67
382 votes
Writers: Ian Sobel, Matt Morgan
Natural Order

#12 - Natural Order

Season 2 - Episode 3 - Aired Feb 7, 2019

Ryn fights to maintain leadership of the pack when her loyalties are questioned over her friendship with Ben and Maddie. Ben interferes in a mermaid ritual and Helen discovers more about her family lineage.

star 7.65
554 votes
Directors: Joe Menendez
Writers: Heather Thomason
No North Star

#13 - No North Star

Season 2 - Episode 9 - Aired Jun 13, 2019

Ben, Maddie and the other humans deal with the fallout from the attack on the oil rig, while the mermaids reacclimate to their ocean home. Ryn comes back to land to follow through on an agreement she made with the military, despite not knowing what their ultimate goals are.

star 7.64
427 votes
Writers: Sarah Wise
Being Human

#14 - Being Human

Season 1 - Episode 8 - Aired May 10, 2018

Bristol Cove mourns a loss causing Ryn to experience a new human emotion.

star 7.62
952 votes
Directors: Amanda Tapping
Writers: Liz Maccie
All In

#15 - All In

Season 2 - Episode 10 - Aired Jun 20, 2019

With Elaine Pownall’s health worsening, she seeks treatment from the military’s medical trial using mermaid cells, but the procedure doesn’t come without side effects to the mermaids. Helen and Rick learn more about the hybrid status, their history in Bristol Cove, and discover they are far less alone than Helen once believed.

star 7.62
386 votes
Directors: David Solomon
Writers: Heather Thomason

#16 - Serenity

Season 2 - Episode 12 - Aired Jun 27, 2019

Ryn goes back to the ocean to get help for Ben and Maddie’s conditions but discovers that continuing to go back may get harder than she realized the longer she’s on land. But when they learn that there may be a special place in Ryn’s homeland that could help them, Ben, Maddie and Ryn must all venture under the sea together to find the cure. Meanwhile, Helen and Ted connect over their shared family histories.

star 7.61
360 votes
Writers: Elias Benavidez
Interview with a Mermaid

#17 - Interview with a Mermaid

Season 1 - Episode 3 - Aired Apr 5, 2018

Dale and the local police’s investigation starts pointing directly to Ryn, meanwhile Xander and Calvin’s search for Chris heats up when they locate the nurse who works at the military bunker.

star 7.59
1,451 votes
Directors: Jay Karas
Writers: Emily Whitesell

#18 - Showdown

Season 1 - Episode 6 - Aired Apr 26, 2018

When Ben and Maddie attend his mother’s fundraising gala, an unexpected guest shows up and offers to put an end to the overfishing that’s threatening the lives of the mermaids in Bristol Cove.

star 7.58
1,081 votes
Directors: Martha Coolidge
Writers: Holly Brix
The Arrival

#19 - The Arrival

Season 2 - Episode 1 - Aired Jan 24, 2019

With more mermaids landing at Bristol Cove’s shores, the threat of discovery increases. After his encounter with the siren song, Ben tries to cope with the after effects. Maddie’s mom returns to town and tries to connect with her daughter. Meanwhile, Ryn attempts to adapt to life on land.

star 7.57
659 votes
Writers: Emily Whitesell

#20 - Sacrifice

Season 2 - Episode 15 - Aired Jul 25, 2019

Ben and Xander are left dealing with a shocking discovery about Chris and his connection to the military. Meanwhile, Helen and Maddie reluctantly seek help from the hybrids as the threat of extinction looms over the mermaids. Ryn encounters the journalist who continues to chase his theories on mermaids to increasingly desperate ends.

star 7.55
347 votes
Writers: Liz Maccie
The Wolf at the Door

#21 - The Wolf at the Door

Season 2 - Episode 2 - Aired Jan 31, 2019

Ben, Maddie and Ryn desperately try and keep the newly arrived mermaid pack hidden from the rest of the town, but the new mermaids’ quick degradation on land forces them to get them back to the sea unnoticed during the town’s Mermaid Beauty Contest. Elaine grows more suspicious of Helen and her connections to their family.

star 7.54
612 votes
Directors: Amanda Row
Writers: Eric Wald
The Outpost

#22 - The Outpost

Season 2 - Episode 13 - Aired Jul 11, 2019

Mermaid mating season has begun, with Ryn knowing she will need to go back to the sea to help her colony. The hybrids convince one of the mermaids to come with them to a remote location, leading Helen and Ben on a hunt to find them. A journalist turns to Xander for help putting the pieces together of the night of the oil rig disaster, but Xander is torn on where his loyalties lie and what helping him could mean for his future.

star 7.54
367 votes
Directors: Amanda Tapping
Writers: Cole Fowler
Curse of the Starving Class

#23 - Curse of the Starving Class

Season 1 - Episode 5 - Aired Apr 19, 2018

Ben begins to investigate some suspicious overfishing, meanwhile Decker ramps up his efforts to find his escaped mermaid and shows the true extent of his influence.

star 7.50
1,254 votes
Directors: John Badham
Writers: Michael Gans, Richard Register
The Last Mermaid

#24 - The Last Mermaid

Season 2 - Episode 14 - Aired Jul 18, 2019

Mating season turned out to be less successful than everyone had hoped, leading them to question the possibility of the mermaids procreating on land. Ryn brings a new mate ashore for the good of the colony, but it raises emotional questions for Ben and Maddie.

star 7.49
350 votes
Directors: Barbara Brown
Writers: Michael Gans, Richard Register
The Lure

#25 - The Lure

Season 1 - Episode 2 - Aired Mar 29, 2018

Ben and crew of The North Star uncover a device emitting a strange sound. Meanwhile, Ryn finds shelter in the home of the local folklore expert.

star 7.48
1,360 votes
Directors: Nick Copus
Writers: Eric Wald