H2O: Just Add Water

Name: Unfathomable
Duration: 1440000 s
Rating: 7
Cast: Phoebe Tonkin, Claire Holt, Cariba Heine

Unfathomable

TV-PG

S2 • E26 Mar 20, 2008 24m

A unusual and rare planetary alingment is set to cause the full moon to remove a mermaids powers if they enter the moon pool! Charlotte shows immunity and tries to reveal the girls secret before Lewis takes her to Mako Island. The girls follow and a battle erupts. But who will win?