Siren

A new threat wreaks havoc on Bristol Cove's shores.

Ben and Maddie work with Ryn to keep the pack hidden.

Ryn fights to maintain leadership of the pack.

Ben becomes a mentor to Levi.

Ryn teaches the mermaids to be more human.

Katrina tries to get the pack on her side.

Ryn makes a deal with a complicated ally.

Humans and mermaids try to stop an oil company.

Everyone deals with the attack on the oil rig.

Elaine seeks treatment using mermaid cells.

Maddie and Ben contend with how to help Ryn.

Ryn goes to the ocean to get help for Ben and Maddie.

Ryn needs to go back to the sea to help her colony.

Mating season was less successful than they had hoped.

Helen and Maddie reluctantly seek help from the hybrids as the threat of extinction looms over the mermaids. Ryn meets the journalist who continues to develop his theories about mermaids to increasingly desperate ends.

The truth about mermaids is exposed.