Serena trains with Pancham and Fennekin for their upcoming performance but Chespin and Pancham get into an argument.
The group spot a Gallade attacking a Snubull leading Pikachu to end up attacking an ruining a performance.
The group join a group of marine archaeologists as they explore a sunken ship home to Skrelp.
The gang meet up with Sanpei and his Greninja who are having trouble with another Ninja trainer.
The gang meet up with Grace, Serena's mother who learns of Serena's new goal but isn't too happy about it.
James and his Inkay find their bond tasted when the gang encounter the evil Malamar from before.
The gang encounter a wild Goomy who is the weakest Dragon type and is scared of everything including Dedenne.
Another attack by Team Rocket leaves the gang separated from their Pokémon leaving Goomy with Dedenne.
Team Rocket's attempt to steal a Vanillite causes trouble among the other Pokémon in Coumarine City.
Ash challenges Ramos to a gym battle using Fletchinder, Hawlucha and Frogadier against Ramos' grass types.
After Serena registers for the Pokémon Showcase, she and Ash go shopping during the annual festival but Ash has trouble deciding what to get.
Serena enters the Coumarine Rookie Class Showcase as her first performance but also entering are Jessie and Shauna.
Out on the Lumiose Badlands, the gang come across a group of Grumpig being used by Team Rocket to cause trouble.
The gang are near the Kalos Power Plant but all the Electric type Pokémon are causing trouble which soon includes Pikachu, Luxio and Dedenne.
Following a blast off, Jessie and Wobbuffet are saved from drowning by a man who Jessie falls in love with so Jessie thinks about their future.
Training for the next showcase with Pancham and Fennekin ends badly for Serena but she receives advice from a mysterious lady.
Ash, Serena and Bonnie meet up with Tierno and his Pokémon including his Wartortle who has evolved only for Team Rocket to strike.
Arriving in Lumious City, Ash starts his gym battle against Clemont only for Officer Jenny to arrest Clembot for a crime it didn't commit.
Ash has a battle against Clemont for his fifth badge using Pikachu, Goodra and Hawlucha against Bunnelby, Heliolisk and Luxray.
Paying Professor Sycamore a visit, the gang discover he can now mega evolve Garchomp only for Team Rocket to attack, stealing the stones and Garchomp.
Travelling through a set of wetlands, the gang realise that this was Goodra's home as they soon uncover Goodra's traumatic past.
Team Rocket are revealed to be responsible for Florges' attack on Goodra's homeland as the gang work to stop the attack.
An attack by Team Rocket leaves the gang separated leaving Bonnie tied together with Meowth and Dedenne but wild Pangoro causes trouble.
The gang visit the scary house on their way to Laverre City where they hear a story about the ghosts that inhabit the house.
The gang arrive in Laverre City where Clemont meets Scottie again but the gym leader Valerie isn't available for any battles.
After Scottie's loss to Valerie, Ash takes on her Sylveon and Spritzee using Fletchinder and Hawlucha.