Though he's excited to attend Professor Oak's Pokémon camp, Ash oversleeps when the day arrives. Newcomer Goh is just as excited — and on time.
Professor Oak invites Ash to the opening ceremony for Professor Cerise's new lab in Vermilion City. Goh sets out to catch a legendary Pokémon.
Professor Cerise asks Ash and Goh to investigate the sudden appearance of Ivysaur in Vermilion City, but the two researchers disagree on their methods.
Ash and Goh head to the Galar region on assignment. During their stopover, some Pokémon steal Ash's backpack — with Ash and Goh's train tickets inside!
Once they get off the train, Ash and Goh set out on the hunt for Dynamax Pokémon. Meanwhile, a Scorbunny is hot on their trail.
After learning more about the Pokédex functions on their Rotom Phones from Professor Cerise, Ash and Goh head out to catch some local Pokémon.
Ash and Goh travel to the Hoenn region, where Ash has entered Goh into the Battle Frontier Flute Cup. Their first opponents are Hodge and his Hariyama.
The internet is full of reports that legendary Pokémon Ho-Oh has been seen in the Johto region. The researchers head to Ecruteak City to check it out.
After a ship's captain reports being saved by a Dragonite, Goh and Ash set out in search of the Dragonite island that they believe exists ... somewhere.
While the laboratory staff deal with a mysterious power outage, Chloe contemplates her future and her relationship with Pokémon.
Professor Cerise gives Ash and Goh tickets to the World Coronation Series finals in the Galar region, where the strongest trainers battle for glory!
When a Gigantamax Drednaw interrupts the World Coronation finals in pursuit of Team Rocket, Ash, Goh and their Pokémon spring into action!
Ash and Goh travel to the Unova region, where they head to the newly discovered Ruins of the Titan site at Desert Resort to search for Pokémon.
After snow in Vermilion City forces Professor Cerise to shut down the lab for system maintenance, Goh heads home for a few days to visit his family.
Gengar's hauntings at the lab resume. Ash and Goh vow to capture the poltergeist Pokémon, and Professor Cerise explains the lab's paranormal history.
After Darmanitan taunts Scorbunny in a practice battle, Scorbunny is determined to learn the Ember attack, but getting Goh's attention is a challenge.
Ash and Goh head to the Vermilion Gym, where Ash challenges the substitute Gym Leader as his first World Coronation Series opponent.
Goh and Ash visit a film set, where the star, a Ditto, flees after a fight with the director. They search for her, but she's fallen in with Team Rocket!
Pokémon Orienteering day dawns bright and early, with Ash, Goh and Professor Cerise each leading a group of kids on a trek through Vermilion City.
After learning about Pokémon Eggs, Goh wants to find one. Ash's latest World Coronation Series match ends with him feeling like someone is calling him.
Ash and Goh head to the Hoenn region to witness the annual migration of Beautifly, but first they have to find them. Goh's Raboot starts acting out.
Someone seems to be stealing the food that the researchers leave out for Pokémon in Cerise Park. To catch the culprit, Ash and Goh camp out.
Team Rocket are sent to the Sinnoh region for a vacation, but their break is interrupted by the arrival of Ash and Goh looking for a special Pokémon.
Ash and Goh head to the Kalos region, where Goh wants to catch Kalos Pokémon and Ash sets his sights on a World Coronation Series Battle Festival.
Goh enters his giant Magikarp in the tenth annual Magikarp High Jump Tournament. Then he and Ash head to Slowpoke Island, hoping to catch a Slowpoke.
Professor Cerise gives Ash and Goh tickets to a World Coronation Series Master Class battle in Galar, with challenger Raihan battling champion Leon.
A Sobble sneaks up on Ash and Goh while they're eating at the Wyndon Pokémon Center. To catch it, they have to follow a trail of crying people.
Yamper brings home an injured Pidove, so Professor Cerise and his family decide to nurse it back to health. Chloe has her hands full keeping the peace!
Ash and Riolu are on a roll after the latest World Coronation Series battle, and Pikachu is jealous! When Ash's mom visits, Pikachu follows her home.
Chloe asks Ash and Goh to step in at her younger brother Parker's school: His friend Nami is upset that other kids say her Feebas isn't cute.
Goh joins his parents for a family vacation in the Johto region. Walking through the woods, he recalls meeting another trainer there three years ago.
The local Pokémon Center is hosting a Pokémon trading event. When Ash and Goh head over to check it out, they meet a trainer who's a Bug-type enthusiast.
Ash travels to Saffron City to battle his next opponent, but when he learns that the Karate Master has been defeated, he challenges the victor instead.
Goh decides to catch a Pikachu, and Professor Cerise informs him about a mass outbreak of Pikachu in the mountains. But Team Rocket is on the hunt too!
After Ash battles new opponents in the World Coronation Series, the Cerise Laboratory researchers head to the Hoenn region to investigate a sandstorm.
Ash and Goh head to the Alola region and reunite with Professor Kukui, Professor Burnet and Ash's human and Pokémon friends at the Pokémon School.
With Chloe in tow, Ash and Goh visit the Pewter Museum of Science. Goh heads to a public dig site to find a Fossil Pokémon, but Team Rocket is there!
Goh and Ash travel to the Cianwood Gym in the Johto region so Ash can take on Bea in a World Coronation Series rematch.
When a hot day in Vermilion City turns thunderous, Ash, Goh and Professor Cerise suspect that the Legendary bird Pokémon Zapdos is somewhere nearby.
While Meowth battles a cold, Jessie and James review a video of Ash's Pikachu. On a forest walk, Ash and Goh try to help a wild Marshtomp.
Ash and Goh set out for the Galar region to investigate the Dynamax phenomenon. During a train delay, they meet strange Pokémon in a mysterious forest.
While Goh and Sonia investigate the Darkest Day in Turffield, Team Rocket infiltrates the Galar Energy Plant, with Ash and Leon heading there too.
Ash heads to Stow-on-Side to meet Sonia and Goh, who conclude that the Darkest Day is a Pokémon. At the Energy Plant, Leon encounters it directly.
At the stadium, Leon and Team Rocket are no match for Eternatus. Ash takes on Chairman Rose while Goh battles Oleana to break through and end the chaos.
When Psychic energy is detected on Cero Island, Ash and Goh head out in hopes of finding Mew. When they get there, they meet an old foe: Mewtwo!
The Vermilion City Pokémon Eating Contest is on, and Ash, Goh and their Pokémon are competing for a trip to Unova. Team Rocket wants to win too.
Setting out on Goh's prize trip, Ash and Goh arrive in Castelia City. Unbeknownst to them, Team Rocket is lying in wait to kidnap Pikachu!
Watch Pokémon Season 23, Episode 11: Best Friend... Worst Nightmare! online on FlixGems. While the laboratory staff deal with a mysterious power outage, Chloe contemplates her future and her relationship with Pokémon.