En la costa de Cape Mercy, un grupo experto de jóvenes buceadoras investiga una serie de señales y secretos después de que una de las suyas desaparezca misteriosamente.
Georgia-May Davis
Lauren
Mercy Cornwall
Izzie
Aubri Ibrag
Anna
Sana'a Shaik
Stevie
Miah Madden
Maddie
Veronica Neave
Mayor Renee Volkov
John McNeill
Sea Dog
Kate Peters
Victoria Volkov
Tim Ross
John Martin
Yasmin Kassim
Lucinda
Jai Koutrae
Chief Jack Rose
Josh Heuston
Henry
Georgia-May Davis
Lauren
Mercy Cornwall
Izzie
Aubri Ibrag
Anna
Sana'a Shaik
Stevie
Miah Madden
Maddie
Veronica Neave
Mayor Renee Volkov
John McNeill
Sea Dog
Kate Peters
Victoria Volkov
Tim Ross
John Martin
Yasmin Kassim
Lucinda
Jai Koutrae
Chief Jack Rose
Josh Heuston
Henry
Georgia-May Davis
Lauren
Mercy Cornwall
Izzie
Aubri Ibrag
Anna
Sana'a Shaik
Stevie
Miah Madden
Maddie
Veronica Neave
Mayor Renee Volkov
John McNeill
Sea Dog
Kate Peters
Victoria Volkov
Tim Ross
John Martin
Yasmin Kassim
Lucinda
Jai Koutrae
Chief Jack Rose
Josh Heuston
Henry