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Mermaids and humans join forces in a radical plan to stop the oil company, but their efforts have a devastating effect. And facing an uncertain future, Ben, Maddie and Ryn come together for a romantic farewell.
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
