Siren

- Season 2

(2019)

A new threat wreaks havoc as more mermaids land on the shores; Ben tries to cope with the siren song's aftereffects.

Ben, Maddie, and Ryn try to keep the new mermaid pack hidden from the town's Mermaid Beauty Contest.

Ryn fights to maintain leadership of the pack; Helen discovers more about her family lineage.

Ryn looks for new housing for the mermaids; Ben becomes Levi's mentor; Maddie continues to struggle with her mother's presence.

Maddie finds herself in a dangerous situation; Ben and Xander reconcile to get the mermaids back into the water.

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.

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.

Mermaids and humans join forces to stop the oil company, but their efforts have a devastating effect.

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.

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.

Maddie and Ben contend with how to help Ryn; When Maddie gets sirened, the group strive to uncover how the siren song really works.

Ben, Maddie and Ryn venture under the sea to a special place in Ryn's homeland that could help with their conditions.

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.

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.

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.

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