Mako Mermaids S1, E18

A young man is magically turned a merman, and discovers his underwater origins, after he comes in contact with the magic waters at the mysterious Mako Island guarded by a trio of mermaids.

Cast:Chai Hansen , Dominic Deutscher , Gemma Forsyth , Rowan Hills , Kerith Atkinson , Amy Ruffle , Brooke Lee , Isabel Durant , Allie Bertram , Lucy Fry , Ivy Latimer , Alexander Cubis , Linda Ngo , John O'Brien , Monte , Laura Keneally , Taylor Glockner , Steve Harman