The group continues their search for the missing pearls inside a dormant volcano. But Barbarossa is waiting in the shadows to disrupt their plans.
An old foe becomes a friend as Merlinda returns to Pirate Cove to try and save Nerissa, Alex and the pearls. Fred learns the truth about his father.
Celia and Tyler help Merlinda, Nerissa and Sasha adjust to their new school above the surface and try to find answers about their missing map.
While Merlinda, Nerissa and Sasha use their powers to help Tyler and Celia save the rescue center, Barbarossa and Tempesta concoct a plan of their own.
A day at the amusement park proves relaxing — and perilous — when the gang's greatest threat makes an appearance. Alex sets out on his own mission.
Nerissa and Sasha look for Merlinda on land. But with her communication bracelet broken, the princess will have to trust her new human friends.
As Merlinda, Nerissa, Sasha and Alex make their way back to Mertropia, they discover that an unwelcome force has entered through the portal.
Will and Carlton feel the pressure of running "Blackcess"; everyone rallies around Hilary.
As everything comes to a head, Nana confronts her lies and opens up to her colleagues, to Mathias and Lucia — and to a new acquaintance.
Under The Man's instruction, Stu gets the gang jobs in the prison coke factory while Hugo works a special job for Selma - the assassination of her brother at a dinner being thrown for their boss. Things go awry. Stu's betrayal unspools. Blood spills.
Shui-yuan's meeting with Huang Hsian culminates in a colossal misunderstanding. To lure out the killer, Chang Yung-kang makes a risky announcement.
As an unprecedented crisis grips GG Precinct, Ming-han's instinct guides him to someone who has slipped under the radar the entire time.
A strange phone call points the police to a suspect and his private home. Meanwhile, Wu Ming-han decides to chase down a different lead by himself.
As Shui-yuan's past unfolds, the police find more clues about the current cases. Following a famous tutor takes Ming-han down an unexpected path.
After a sabbatical, Detective Wu Ming-han and his new captain Lin Tzu-ching take on a puzzling murder that leads them to a notorious killer behind bars.
A third murder occurs, alluding to yet another cryptic Chinese idiom. Left with no other choice, the cops must enlist Shui-yuan's help with their cases.
After less than three months of parental leave, Nana decides it’s time to ask if she can rejoin the clinic — but a lot has changed since she left.
A chance encounter at the supermarket prompts Nana to make an uncomfortable confession. Her mother proves to be an unreliable babysitter.