Freeform has released the official episode synopsis for the season 3 premiere of Siren. Siren Season 3 Episode 1 is titled “Borders”.
Siren 3×1 “Borders” Episode Guide
As an old friend visits Helen, a new mermaid arrives leaving Ryn questioning their motives. Maddie learns the truth behind Ian’s death, as Ben fights for his mother’s treatments. While Xander is inspired to take on more responsibility.
Siren Season 3 Episode 1 airs on April 2 at 9|8c on Freeform.