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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.
First Air Date : Mar 29, 2018
Last Air date : May 28, 2020
Episode : 36 Episode
Season : 3 Season
Runtime: 42:14 minutes
Studio: Freeform
Country: United States of America