Ryn goes all out to try and save Hope on Siren. "The Toll of the Sea" is the tenth episode of the show's third season.

Ryn, Ben, and Maddie race to find a cure for Xander’s mysterious illness on Siren. "A Voice in the Dark" is the ninth episode of the show's third season.

Ryn must protect Bristol Cover from Tia's army on Siren. "Til Death Do Us Part" is the eighth episode of the show's third season.

Helen is startled by something she sees about Donna on Siren. "Northern Exposure" is the seventh episode of the show's third season.

Ryn discovers a refuge of injured mermaids that escaped Tia's violent takeover on Siren. "The Island" is the sixth episode of the show's third season.

Ryn wants to learn how to be a mother on land and sea on Siren. "Mommy and Me" is the fifth episode of the show's third season.

Ryn guides her surrogate though a life-threatening delivery on Siren. "Life and Death" is the fourth episode of the show's third season.

Ryn learns of her unborn child on Siren. "Survivor" is the third episode of the show's third season.

Helen warns the hybrids of trouble on Siren. "Revelations" is the second episode of the show's third season.

Ryn finds herself questioning everyone's motives on Siren. "Borders" is the first episode of the show's third season.