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In the Shadow of Zekrom! Ash and his mother take a vacation with Professor Oak to the Unova region. A dark cloud reveals a mysterious Pokémon which affects Pikachu.
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Enter Iris and Axew! After being struck by lightning, Pikachu is having trouble using its Electric-type attacks...but a second strange thunderstorm heals the Pokémon just as quickly! Attributing the ordeal to the Legendary Pokémon Zekrom, Professors Oak and Juniper agree that further research is needed.
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A Sandile Gusher of Change! Ash and Iris try to help the owners of a Hot Sand Resort who are being plagued by Sandile.
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The Battle Club and Tepig's Choice! Ash and Iris stop at a Battle Club for some training. Ash's battle is interrupted by Team Rocket and a mysterious Pokémon.
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Triple Leaders, Team Threats! Ash arrives at the Striaton Gym for his first battle. The three gym leaders offer Ash a choice for the battle. Ash requests a battle with all three leaders.
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Dreams by the Yard Full! Ash's battle concludes. Cilan, impressed with Ash's victory, decides to journey with Ash to become a better connoisseur. Part of Team Rocket's plan is revealed.
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Snivy Plays Hard to Catch! Ash and company encounter a wild Snivy with some really powerful attacks. They suspect it left its previous trainer. Ash is determined to catch the Snivy.
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Saving Darmanitan From the Bell! Ash and company encounter a pair of Darumakas who steals food. They soon find they're bringing it to their friend who is psychically supporting a bell. Team Rocket's plans continue.
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The Bloom Is on Axew! Iris has a training battle with Cilan, and her past is explored.
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A Rival Battle for Club Champ! Ash challenges Trip to a full Pokémon battle.
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A Home for Dwebble! Ash and company encounter a Dweeble who has his shell stolen from him by other Dweeble. They aide him reclaiming his home.
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Here Comes the Trubbish Squad! Ash and friends come across a group of kindergarten students who have befriended a Trubbish after rescuing it from a junkyard.
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Minccino-Neat and Tidy! Ash and company meet Bianca, Professor Juniper's helper. She gives Ash a badge case, which is promptly stolen by a Minccino. Now the group tries to catch the Pokémon.
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A Night in the Nacrene City Museum! Arriving in Nacrene City, our Heroes discover the Gym has a most unusual location and situation!
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The Battle According to Lenora! The day for Ash's Nacrene City Gym Battle challenge is here, and Lenora isn't about to go easy on our Hero!
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Rematch at the Nacrene Gym! After some special training, Ash challenges Lenora to re-match.
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Scraggy-Hatched to Be Wild! Ash's Pokémon egg finally hatches revealing a Scraggy.
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Sewaddle and Burgh in Pinwheel Forest! Ash and company get lost in Pinwheel Forest and encounter a wild Swaddle and Burgh, the next gym leader Ash wants to challenge.
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A Connoisseur's Revenge! The adventurers encounter a Pokémon Connoisseur who insists that Ash replace all his Pokémon. They soon discover she has a past with Cilan, and a Pokémon battle ensues.
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Dancing With the Ducklett Trio! A previously encountered Sandile wants to battle Ash's Pikachu. But their battle is interrupted by some wild Duckletts.
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The Lost World of Gothitelle! The adventurers cross a foggy bridge and seemingly into the past where they meet a young girl and her Gotitelle.
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A Venipede Stampede! The adventurers arrive in Castilla City and find that it's overrun with Venipede.
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Battling for the Love of Bug-Types! Ash battles Burgh for his third badge.
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Emolga the Irresistible! The adventurers try to help Bianca capture an Emolga.
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Emolga and the New Volt Switch! Iris attempts a training battle with her newly-acquired Emolga. But Emolga has other ideas.
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Scare at the Litwick Mansion! While taking cover from the rain, the adventurers encounter Team Rocket and some seemingly helpful Litwick.
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The Dragon Master's Path! The adventurers meet Emmy, a trainer who has yet to start her journey. Iris reveals her dream to be a Dragon Master.
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Oshawott's Lost Scalchop! During a battle with another trainer, Oshawott loses his scalchop, causing Oshawott to run off to search for it mid-battle.
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Cottonee in Love! The adventurers try to help a wild Cottonee who's having during its mating season.
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A UFO for Elgyem! The adventurers spot a UFO and encounter Professor Icarus, an expert on the subject.