The BEST episodes of Siren (2018)
Every episode of Siren (2018) ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Siren (2018)!
A costal town known for its legend of once being home to mermaids is turned upside down when a mysterious girl appears and begins wreaking havoc.
#1 - The Toll of the Sea
Season 3 - Episode 10 - Aired 5/28/2020
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.
#2 - Sacrifice
Season 2 - Episode 15 - Aired 7/25/2019
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.
#3 - Entrapment
Season 2 - Episode 7 - Aired 3/7/2019
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.
#4 - On the Road
Season 1 - Episode 4 - Aired 4/12/2018
When the military facility goes on high alert, Chris manages to escape, but he’s not the only one who gets out.
#5 - Interview with a Mermaid
Season 1 - Episode 3 - Aired 4/5/2018
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.
#6 - Street Fight
Season 1 - Episode 9 - Aired 5/17/2018
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.
#7 - Aftermath
Season 1 - Episode 10 - Aired 5/24/2018
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.
#8 - All In
Season 2 - Episode 10 - Aired 6/20/2019
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.
#9 - Borders
Season 3 - Episode 1 - Aired 4/2/2020
As an old friend visits Helen, a new mermaid arrives leaving Ryn questioning their motives. Maddie learns the truth behind Ian’s death. Ben fights for his mother’s treatments. Xander is inspired to take on more responsibility.
#10 - Pilot
Season 1 - Episode 1 - Aired 3/29/2018
In the series premiere, a mysterious girl arrives in a small coastal town, leading to the return of vicious mermaids who are seeking to reclaim their rule over the ocean.
#11 - Showdown
Season 1 - Episode 6 - Aired 4/26/2018
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.
#12 - Dead in the Water
Season 1 - Episode 7 - Aired 5/3/2018
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.
#13 - Being Human
Season 1 - Episode 8 - Aired 5/10/2018
Bristol Cove mourns a loss causing Ryn to experience a new human emotion.
#14 - Curse of the Starving Class
Season 1 - Episode 5 - Aired 4/19/2018
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.
#15 - The Lure
Season 1 - Episode 2 - Aired 3/29/2018
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.
#16 - The Wolf at the Door
Season 2 - Episode 2 - Aired 1/31/2019
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.
#17 - Oil and Water
Season 2 - Episode 4 - Aired 2/14/2019
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.
#18 - Survivor
Season 3 - Episode 3 - Aired 4/9/2020
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.
#19 - Mommy and Me
Season 3 - Episode 5 - Aired 4/23/2020
Ryn returns to land to explore human motherhood. Maddie and Robb come across a gruesome discovery. Ben experiences mysterious side effects. Ted confronts Helen.
#20 - A Voice in the Dark
Season 3 - Episode 9 - Aired 5/21/2020
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.
#21 - Til Death Do Us Part
Season 3 - Episode 8 - Aired 5/14/2020
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.
#22 - Northern Exposure
Season 3 - Episode 7 - Aired 5/7/2020
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.
#23 - The Island
Season 3 - Episode 6 - Aired 4/30/2020
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.
#24 - Life and Death
Season 3 - Episode 4 - Aired 4/16/2020
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.
#25 - Revelations
Season 3 - Episode 2 - Aired 4/2/2020
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.