"Siren" is a supernatural drama series that premiered in March 2018 on Freeform (formerly known as ABC Family) in the United States. The series is set in the fictional coastal town of Bristol Cove, which is known for its legends of mermaids. The plot revolves around the arrival of a mysterious girl named Ryn, who turns out to be a mermaid.

The series follows the lives of the residents of Bristol Cove as they navigate the discovery of Ryn and the secrets of the mermaid population. Ben, a marine biologist, and his girlfriend Maddie, a marine biologist-in-training, take a particular interest in Ryn and her mermaid biology. The trio forms an unlikely bond as they work together to protect Ryn from those who seek to capture and exploit her kind.

Throughout the series, the characters grapple with the moral implications of their actions and the consequences of exploiting a new and unknown species. Alongside themes of environmental conservation and protection, "Siren" explores the complexities of relationships between humans and non-human creatures.

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