A Twist in the Tail


Air Date:
29 December 2006
Directed by:
Jeffrey Walker
Written by:
Philip Dalkin
Preceded By:
Followed By:

A Twist in the Tail is the 26th and final episode in Season 1 of H2O: Just Add Water.


Dr. Denman has discovered the girls' secret and trapped them on Mako Island. Their only chance to avoid being exposed is to use the lunar eclipse to give up their powers forever!


Zane tells Rikki that Denman and his father have photographic evidence of mermaids and the girls freak. Denman lures Lewis to her boat in a bid to get the girls to follow. It works and when the girls surface at the Moon Pool, Denman is there waiting for them and traps them. Zane too is there – totally gobsmacked that Rikki is one of the mermaids. When Denman zeroes in on the girls to do some testing Zane sneaks off to get Lewis who helps him free the girls. Denman and Harrison are livid. Miss Chatham tells the girls that people will keep hunting for them unless they give up their powers – they can do it tonight in the moon pool during the lunar eclipse. They do. Suddenly in the moon pool the girls have legs again. But are Emma, Cleo and Rikki’s powers really gone forever? Or have they just pulled off a surprising twist?


  • This is the last episode of season 1, also the last episode to air in 2006.
  • The girls are trapped at Mako.
  • The girls' secret is revealed to Zane eventually leading to the end of his relationship with Rikki.
  • Lewis and Zane work together once again, this time to save the girls.
  • The last appearances of Dr. Linda Denman, Miss Chatham, and Harrison Bennett for unknown reasons.
  • When Cleo attacks Denman, she uses her left hand when she normally uses her right.
  • The actor Steve Harman from H2O's spin-off series Mako: Island of Secrets plays crew member.
  • The girls temopary lose their tails and powers in this episode.
  • This episode reveals that Emma and Zane known each other since they were three years old.



  • In the U.S. both episodes 25 (Dr. Danger) and 26 (A Twist In The Tail) were aired as an one hour event entitled "Revealed".


(Lewis opens gates under Moon Pool, where girls are trapped)
Dr. Denman: What was that?!
Rikki: That was sound of - goodbye!




H2O - just add water S1 E26 - A Twist in the Tail (full episode)

H2O - just add water S1 E26 - A Twist in the Tail (full episode)