Season 4

E1. A Visit from the East

May 15, 2016 · 24m

Ondina is tasked with teaching the younger mermaids. A mermaid from China joins the pod. During a full moon ceremony, a terrifying beast emerges.

E2. Seeing Is Believing

May 22, 2016 · 24m

When marine park workers are sent to investigate the reported sea monster, the mermaids must create a credible explanation to stop further inquiries.

E3. Recipe for Success

May 29, 2016 · 24m

Weilan casts a knowledge transference spell on Zac to help him pass a biology test. But more than just science facts transfer from her body to his!

E4. Mopping Up

Jun 5, 2016 · 24m

When Evie tries using her new moon ring to magically finish her chores, things quickly get out of control. Joe makes an upsetting announcement.

E5. The Puzzle Box

Jun 12, 2016 · 24m

Weilan comes up with the idea of using a Chinese puzzle box to trap the sea dragon. Cam panics when Carly suggests they take dance lessons.

E6. New Beginnings

Jun 19, 2016 · 24m

Evie's moon ring lesson with Ondina takes an unexpected turn. At the marine park, Mimmi discovers the reason for a rescued dolphin's distress.

E7. Turning the Tide

Jun 26, 2016 · 24m

Zac begs Weilan to teach him an Eastern spell few have mastered, which he hopes to use against the dragon. Joe encounters a water ball.

E8. The Way of the Dragon

Jul 3, 2016 · 24m

On the eve of the full moon, Ondina and Mimmi defy Veridia's orders. Evie becomes suspicious when she spots Zac and Weilan meeting in secret again.

E9. Reversal of Fortune

Jul 10, 2016 · 24m

After overhearing Ondina blaming her for Evie's loss, Weilan runs off. Meanwhile, Mimmi and Ondina combine their powers to try to restore Evie.

E10. Wishful Thinking

Jul 17, 2016 · 24m

Zac realizes a shell he found has magical powers, and he accidentally sends the mermaids back in time five years, where they meet his younger self.

E11. Lost and Found

Jul 24, 2016 · 24m

While Ondina teaches the little mermaids to walk on land, her fastest-learning student wanders off and soon runs into Chris and Karl on the beach.

E12. Trust Issues

Jul 31, 2016 · 24m

When Mimmi and Chris go on a date at the beach, Ondina goes to great lengths to protect her. Cam tries to lure more upscale customers to the cafe.

E13. Letting Go

Aug 7, 2016 · 24m

Mimmi and Zac are startled by a mysterious yet strangely familiar vision. Cam's dual role as Carly's boss and boyfriend becomes difficult to manage.

E14. Age Before Beauty

Aug 14, 2016 · 24m

Weilan mistakenly makes tea for Rita using a magic growth accelerator. Can the mermaids cure Rita before Mrs. Trumble takes over her principal job?

E15. The Legend of Jiao Long

Aug 21, 2016 · 24m

A priceless artifact recovered by a deep-sea treasure hunter provides a clue as to how the mermaids can defeat the water dragon.

E16. Homecoming

Aug 28, 2016 · 24m

The vision reappears to Mimi and Zac, this time speaking to them. Weilan learns a new detail about the dragon legend that suggests Nerissa is alive.