[5][6][7][8][9] A store worker named Kanata Asumi obtains the Ultra D Flasher and becomes Ultraman Decker, using his newfound powers to repel the invading Sphere assaults.

After a one-year period of training, Kanata gets enlisted into GUTS-Select, which consists of captain Taiji Murahoshi, Nursedessei operator Sawa Kaizaki, space exploratory artificial intelligence HANE2 and fellow TPU graduates Soma Ryumon and Ichika Kirino.

A visit from Laelia's spirit manages to redeem Agams at the last minute before his death but fails to stop Mother Spheresaurus from absorbing the energies from Eternity Core.

[3][4] According to director Takesue, while Decker inherited many aspects from Dyna, he aims to take the show's direction to a different approach from its source of inspiration.

GUTS-Select Exchange Report: Special Section 3 Returns (GUTS-SELECT交流記 ～帰ってきた特務3課～, Gattsu Serekuto Kōryū-ki Kaettekita Tokumu San-ka) is a Tsuburaya Imagination-exclusive spin-off program released on October 1, 2022.

[16][17] Ultraman Decker Finale: Journey to Beyond (ウルトラマンデッカー最終章 旅立ちの彼方へ…, Urutoraman Dekkā Saishūshō Tabidachi no Kanata e…) is a film exclusively for pay per view content in Tsuburaya Imagination, released on February 23, 2023.