Siren
A coastal town known for its legend of once being home to mermaids is turned upside down when a mysterious girl appears and begins wreaking havoc.
Cast:Alex Roe , Eline Powell , Fola Evans-Akingbola , Ian Verdun , Rena Owen , Curtis Lum , David Cubitt , Sarah-Jane Redmond , Hannah Levien , Millan Tesfazgi , Georgia Waters , Sedale Threatt Jr. , Tammy Gillis , Aylya Marzolf , Gil Birmingham , David Kaye , Brendan Fletcher , Chad Rook
S2.E1 ∙ The Arrival
A new threat wreaks havoc as more mermaids land on the shores; Ben tries to cope with the siren song's aftereffects.
S2.E2 ∙ The Wolf at the Door
Ben, Maddie, and Ryn try to keep the new mermaid pack hidden from the town's Mermaid Beauty Contest.
S2.E3 ∙ Natural Order
Ryn fights to maintain leadership of the pack; Helen discovers more about her family lineage.
S2.E4 ∙ Oil & Water
Ryn looks for new housing for the mermaids; Ben becomes Levi's mentor; Maddie continues to struggle with her mother's presence.
S2.E5 ∙ Primal Instincts
Maddie finds herself in a dangerous situation; Ben and Xander reconcile to get the mermaids back into the water.
S2.E6 ∙ Distress Call
Dale copes with the fallout from Maddie and Ryn's encounter with the man from Susan's past; Katrina tries to get the rest of the pack to join her side.
S2.E7 ∙ Entrapment
Tensions rises following a shocking discovery; The water tank starts to have an adverse effect on the mermaids; Ryn makes a deal with a complicated ally.
S2.E8 ∙ Leverage
Mermaids and humans join forces to stop the oil company, but their efforts have a devastating effect.
S2.E9 ∙ No North Star
Everyone deals with the fallout from the oil rig attack; Ryn returns to land to follow through on an agreement she made with the military.
S2.E10 ∙ All In
Elaine's treatment from the military's medical trial comes with side effects to the mermaid cells; Helen and Rick learn more about the hybrid status.
S2.E11 ∙ Mixed Signals
Maddie and Ben contend with how to help Ryn; When Maddie gets sirened, the group strive to uncover how the siren song really works.
S2.E12 ∙ Serenity
Ben, Maddie and Ryn venture under the sea to a special place in Ryn's homeland that could help with their conditions.
S2.E13 ∙ The Outpost
Ryn must return to her colony for mermaid mating season; Ben and Helen hunt down the hybrids when they lure a mermaid to a remote location.
S2.E14 ∙ The Last Mermaid
An unsuccessful mating season leads to questioning the possibility of the mermaids procreating on land; Ryn brings a new mate for the good of the colony.
S2.E15 ∙ Sacrifice
Ben and Xander deal with a shocking discovery about Chris and his connection to the military; Helen and Maddie reluctantly seek help from the hybrids as the threat of extinction looms.
S2.E16 ∙ New World Order
Ben faces a choice that has rippling consequences amongst mermaids, hybrids and humans alike, as the truth about mermaids is exposed.
