|Flash and Cosmog's Secret|
- Moon battles and defeats a Totem Lurantis for training.
- Sun and Moon meet Professor Kukui's wife, Professor Burnet.
- Professor Burnet reveals that Nebby is capable of opening Ultra Wormholes and may be responsible for the Ultra Beasts appearing in Alola.
- Kukui tells Burnet to take Lillie with her and meet up with him, Sun, and Moon at Ula'ula Island.
- Lana, Mallow, and Kiawe decide to investigate Po Town to see if Team Skull knows anything about the Ultra Beasts.
- Mallow decides to call Ilima and Acerola for their assistance.
- Gladion arrives at Po Town for the first time, where he meets Plumeria, the Team Skull Admin.
- A Zygarde Core spies on Gladion.
- For a list of all major events in the Pokémon Adventures manga, please see the timeline of events.
|Spoilers end here.|
- Professor Kukui
- Professor Burnet
- Ilima (silhouette)
- Acerola (silhouette)
- Lusamine (flashback)
- Team Skull Grunts
- Meowth (Cent; Alolan Form; Sun's)
- Mareanie (Moon's)
- Popplio (Professor Kukui's; flashback)
- Rockruff (Professor Kukui's; flashback)
- Cosmog (Nebby; Lillie's)
- Type: Null (Gladion's)
- Oricorio (Kahili's; Baile Style; flashback)
- Toucannon (Kahili's; flashback)
- Salazzle (Plumeria's)
- Salandit (multiple; Team Skull Grunts')
- Palkia (Adventures; flashback)
- Giratina (Adventures; flashback)
- Lurantis (Totem; debut)
- Zygarde (Adventures; Zygarde Core)
- Trumbeak (×2)
- Castform (×2)
- Comfey (×3)
- Wingull (multiple)
- Xurkitree (flashback)
- Kartana (flashback)
- Buzzwole (flashback)