The Crown Tundra

Spoiler warning: this article may contain major plot or ending details.

After obtaining the Crown Pass, the player can board a train at Wedgehurst to the Crown Tundra. Upon arriving, the player encounters an enthusiastic man named Peony and his daughter Peonia. Peony wants to take her daughter to an "adven-tour" with him, while Peonia would rather explore the Max Lair. On Peonia's request, the player battles Peony, who reveals himself to be a former Steel-type Gym Leader. Peonia uses the battle as cover to escape, and after the battle, Peony chases after her into the Max Lair. The player is forced to follow Peony into the Max Lair and take part in a Dynamax Adventure, in which they cannot use their own Pokémon, due the dangerous amount of Galar particles. After clearing it, Peonia approaches the player and requests they take her place in her father's "adven-tour". Upon hearing of this, Peony is initially distraught, but comes to accept the situation. The player and Peony set up their base at the town of Freezington, with Peony appointing the player as the expedition chief who does the exploring while he holds down the fort.

Calyrex

The first adventure, The Sacred Bonds of Sovereign and Steed! (Japanese: 神秘！伝説の王と愛馬のキズナ伝説！！ A Mystery! The Legendary Bonds of the Legendary King and Beloved Horses!!), involves the Legendary Pokémon Calyrex, which the townspeople also know as the "King of Bountiful Harvests". Upon restoring the statue of Calyrex in Freezington, the player ends up encountering Calyrex itself. By temporarily taking over Peony's body, Calyrex is able to communicate with the player, explaining that people these days treat it as a fairy tale, and that its powers have diminished notably ever since it was departed from its loyal steed, which is depicted in the statue the player restored. From Freezington's mayor, the player learns that the steed was in love with a certain type of carrot. Depending on the site where the player plants the Carrot Seeds they get, they can either grow a Shaderoot Carrot at the Old Cemetery to cause the Ghost-type Spectrier to appear, or an Iceroot Carrot at the Snowslide Slope to cause the Ice-type Glastrier to appear. The steed heads to Freezington and causes a ruckus there, and forces the player into a battle. Calyrex is forced to intervene when the steed attempts to attack the townsfolk, leaving behind a single strand of hair. With the help of Peony, the player is able to sew a replica of the Reins of Unity that Calyrex needs to tame its steed from the strand of the steed's hair and the Radiant Petal received from Calyrex. The player and Calyrex travel to the Crown Shrine, where Calyrex successfully uses the Reins of Unity to tame its steed again and regain its full power. The fused Calyrex then challenges the player to a battle and lets itself be caught by them. Reporting this capture to Peony concludes the adventure.

Split-Decision Ruins

In the next adventure, The Terrible Titans... Lurking Locked Away! (Japanese: 発見！開かずの扉と伝説の巨人伝説！！ A Discovery! The Unopened Doors and the Legend of the Legendary Titans!!), the player tracks down and catches the Legendary titans Regirock, Regice, and Registeel at the ruins across the Crown Tundra. Once all three have been caught, the player is able to access the Split-Decision Ruins, where they can encounter either Regieleki or Regidrago, depending on the pattern they enter in the ruins, and catch it as well. Reporting these captures to Peony concludes the adventure.

Legendary birds at the Legendary Tree

In the third adventure, A Legendary Tree of a Legendary Three! (Japanese: 目撃！大樹に集う伝説の鳥伝説！！ Witnessed! The Gathered Legendary Birds at the Big Tree!!), the player encounters the Galarian Forms of the Legendary birds at the Dyna Tree Hill, but the sound of the player's Rotom Phone going off alerts them, and they scatter across the region, becoming roaming Pokémon. Articuno roams around the Crown Tundra, Zapdos roams around the Wild Area, and Moltres roams around the Isle of Armor. Catching all of them and reporting the findings to Peony concludes the adventure.

After the player has concluded these three adventures, Peonia appears at the base and informs she's ready to go on an adventure with her father. Peony, out of any legends to explore, tries to tell his daughter that he'll come up with some new legends, which upsets her and causes her to return to the Max Lair, with Peony right on her heels, concluding the main story of The Crown Tundra.

The player then finds an adventure description about Ultra Wormholes that Peony doesn't even recall writing. Showing it to him will make finding and catching Necrozma at the Max Lair the new adventure, calling it They Came From The Ultra Beyond! (Japanese: 伝説！空を覆うウルトラな穴伝説！！ A Legend! Ultra Legendary Cave That Covers the Sky!!). Once Necrozma has been caught and shown to Peony, the scientist running the Max Lair reveals that she was the one who wrote the adventure description, and the adventure is concluded.

After the fourth adventure has started and The Isle of Armor story has been concluded, Leon will contact the player, informing them of the new Galarian Star Tournament, which they can participate at Wyndon Stadium. In this Multi Battle tournament, the player teams up with either Hop or Marnie and eventually goes on to face and defeat Leon and Raihan or Piers and Raihan, respectively, in the finals. Afterwards, Leon declares the Galarian Star Tournament a permanent new feature of Wyndon Stadium. Following this, the ending credits roll.

	Spoilers end here.

• The English title of the fourth adventure is a reference to the 1967 science fiction film They Came from Beyond Space.

Language Title Chinese Cantonese 冠之雪原 Gūn-jī Syutyùhn Mandarin 冠之雪原 Guān-zhī Xuěyuán French Les terres enneigées de la Couronne German Die Schneelande der Krone Italian Le terre innevate della corona Korean 왕관의 설원 Wanggwan-ui Seorwon Russian Корона Снежной Земли Korona Snezhnoy Zemli * Горная тундра Gornaya tundra * Spanish Las nieves de la corona Thai ทุ่งหิมะแห่งมงกุฎ Thunghima-haeng Mongkut

The Sacred Bonds of Sovereign and Steed!

Language Title Cantonese Chinese 驚異！大神秘！傳說之王＆愛馬的牽絆傳說！！ French Un roi, un destrier : une unité parfaite ?! La grande enquête !!! German Mystischer Bund! Der Legendäre König und sein treues Ross! Italian Il profondo legame fra il re leggendario e il suo fido destriero! Korean 신비! 전설의 왕과 애마의 유대 전설! Sinbi! Jeonseorui Wanggwa Aemaui Yudae Jeonseol! Spanish La unión inquebrantable de un rey y su corcel

The Terrible Titans... Lurking Locked Away!

Language Title Cantonese Chinese 驚奇！大發現！緊閉的門＆傳說的巨人傳說！！ French Des portes scellées, des colosses antiques : un public perplexe !!! German Aufregende Entdeckung! Legendäre Giganten und verschlossene Tore! Italian Le porte sigillate e i giganti leggendari! Korean 발견! 열리지 않는 문과 전설의 거인 전설!! Balgyeon! Yeolliji Anhneun Mungwa Jeonseorui Geoin Jeonseol!! Spanish Los gigantes legendarios tras las puertas selladas

A Legendary Tree of a Legendary Three!

Language Title Cantonese Chinese 驚爆！大目擊！聚集在大樹的傳說之鳥傳說！！ French Un arbre mythique, des oiseaux de légende : la foule s’affole !!! German Sagenhafte Sichtung! Legendäre Vögel am kolossalen Baum! Italian L'albero dei Pokémon alati leggendari! Korean 목격! 거목에 모여드는 전설의 새 전설!! Mokgyeok! Geomoge Moyeodeuneun Jeonseorui Sae Jeonseol!! Spanish Las aves legendarias en torno al gran árbol

They Came From The Ultra Beyond!

Language Title Cantonese Chinese 驚世！大傳說！佔滿天空的究極巨穴傳說！！ French Un Ciel Menaçant, un Ultra-Trou béant : info ou intox ? German Legendärer Anblick! Ein ultragrosses Loch klafft am Himmel! Italian L'ultrasquarcio che lacera il cielo! Korean 전설! 하늘을 뒤덮은 울트라한 구멍 전설!! Jeonseol! Haneureul Dwideopeun Ulteurahan Gumeong Jeonseol!! Spanish El inquietante ultraagujero que abrió los cielos