Seasons & Episodes
Pilot
The coastal town of Bristol Cove, once known for being home to mermaids, is turned upside down with the arrival of a mys
The Lure
Ben and crew of The North Star uncover a device emitting a strange sound. Meanwhile, Ryn finds shelter in the home of th
Interview with a Mermaid
Dale and the local police’s investigation starts pointing directly to Ryn, meanwhile Xander and Calvin’s search for
On the Road
When the military facility goes on high alert, Chris manages to escape, but he’s not the only one who gets out.
Curse of the Starving Class
Ben begins to investigate some suspicious overfishing, meanwhile Decker ramps up his efforts to find his escaped mermaid
Showdown
When Ben and Maddie attend his mother’s fundraising gala, an unexpected guest shows up and offers to put an end to the
Dead in the Water
When Ryn is taken in for questioning, Maddie rushes to her rescue. Meanwhile, Ben and Xander return to the deep sea to s
Being Human
Bristol Cove mourns a loss causing Ryn to experience a new human emotion.
Street Fight
Donna comes ashore with two other members of her colony to bring Ryn back home. When mermaids once again begin wreaking
Aftermath
In the season finale, the enchanting siren song takes hold of Ben and Decker. Meanwhile, Dale must answer for the escala
The Arrival
With more mermaids landing at Bristol Cove’s shores, the threat of discovery increases. After his encounter with the s
The Wolf at the Door
Ben, Maddie and Ryn desperately try and keep the newly arrived mermaid pack hidden from the rest of the town, but the ne
Natural Order
Ryn fights to maintain leadership of the pack when the other mermaids question her loyalties. Ben interferes in a mermai
Oil & Water
Ryn decides they need to find another solution for housing the mermaids, as hiding them becomes increasingly difficult.
Primal Instincts
Ryn continues to try to teach the other mermaids to be more human in order to better assimilate, but some are starting t
Distress Call
Dale copes with the fallout from Maddie and Ryn’s encounter with the man from Susan’s past, while Katrina continues
Entrapment
Tensions are rising following a shocking discovery. And living in a tank rather than the ocean is starting to have an ad
Leverage
Mermaids and humans join forces in a radical plan to stop the oil company, but their efforts have a devastating effect.
No North Star
Ben, Maddie and the other humans deal with the fallout from the attack on the oil rig, while the mermaids reacclimate to
All In
With Elaine Pownall’s health worsening, she seeks treatment from the military’s medical trial using mermaid cells, b
Mixed Signals
Maddie and Ben contend with how to help Ryn knowing that in order to help Elaine get better, they will need to continue
Serenity
Ryn goes back to the ocean to get help for Ben and Maddie’s conditions but discovers that continuing to go back may ge
The Outpost
Mermaid mating season has begun, with Ryn knowing she will need to go back to the sea to help her colony. The hybrids co
The Last Mermaid
Mating season turned out to be less successful than everyone had hoped, leading them to question the possibility of the
Sacrifice
Ben and Xander are left dealing with a shocking discovery about Chris and his connection to the military. Meanwhile, Hel
New World Order
Ben faces a choice that has rippling consequences amongst mermaid, hybrid and human alike, as the truth about mermaids i
Borders
As an old friend visits Helen, a new mermaid arrives leaving Ryn questioning their motives. Maddie learns the truth behi
Revelations
When another mysterious death is uncovered in Bristol Cove, Ryn suspects Tia. Maddie befriends a new acquaintance in Sea
Survivor
Ryn seeks help only to learn the secret existence of her unborn child. Ben sets out on a dangerous path to help his mom,
Life and Death
Ben and Maddie help Ryn guide her surrogate though a life-threatening delivery. Helen and Xander deliver a hybrid corpse
Mommy and Me
Ryn returns to land to explore human motherhood. Maddie and Robb come across a gruesome discovery. Ben experiences myste
The Island
Ryn discovers a refuge of injured mermaids that escaped Tia’s violent takeover. Ben and Xander get caught in a battle
Northern Exposure
Ryn, Ben, Maddie must recruit new allies in the fight against Tia. Helen seeks answers when she’s haunted by Donna’s
‘Til Death Do Us Part
Ryn, Ben and Maddie must protect Bristol Cove from Tia’s army. Meanwhile, Ben’s injections are producing unexpected
A Voice in the Dark
Tia unleashes a deadly attack on Bristol Cove. Ryn, Ben and Maddie race against time to find a cure for Xander’s myste
The Toll of the Sea
In an effort to save Hope, Ryn and Ben confront Tia in an undersea battle between the mermaid tribes. Maddie and Robb wo
