|This article is about a/an episode in Tokumei Sentai Go-Busters.|
A Promise Made 13 Years Ago (13年前の約束 Jū-san Nen Mae no Yakusoku) is the second episode of Tokumei Sentai Go-Busters. It is the first appearance of the Super Sougan Buster and GT-02 and RH-03's Buster Vehicle and Buster Machine modes, as well as the first appearance of the MegaZord Alpha and the BugZords.
Using the GT-02 and the RH-03 to carry out the debris remains of the Shovelzord for analysis to counter the Vaglass, Ryuji tries to calm Yoko down about Hiromu getting special treatment while he reports to Kuroki and remembers him as his father's assistant. Suddenly, the Enetron Monitoring System alerts them as the Go-Busters head to an Enetron gas station in the Kazami District. While Hiromu fills Nick's Enetron tank, Ryuji follows the trail to the back of a nearby building where Enter is. However, with Hiromu freezing at the sight of a chicken and Yoko running low on calories to burn, Ryuji is forced to deal with Enter on his own as Blue Buster while Usada explains to Miho the Go-Busters' Weakpoints. Luckily, finding a candy in her skirt pocket, and Nick carrying Hiromu away from the chicken, Yoko arrives before Enter falls back.
As Enter proceeds to create the Metaroid BurnerRoid, Kuroki reveals to Miho the events occurred thirteen years ago that created Messiah and forced his friends, Hiromu's parents, to sacrifice themselves to stop the entity from conquering the world. However, knowing that Messiah would return, Hiromu's father installed an Anti-Metavirus within Hiromu, Yoko, Ryuji, and their Buddy Roids so they can fight the virus. Alerted to a Vaglass Megazord countdown, Hiromu reminds Yoko and Ryuji of the promise they made over a decade ago to get their families back before intercepting Burnerloid.
Managing to destroy Burnerloid four minutes before Megazord arrival, the Go-Busters return to the Energy Management Center to redeploy in their Buster Machines before the BurnerZord appears. While GT-02 and RH-03 deal in getting civilians to safety and putting the fire out, the CB-01 destroys two Bugzords before becoming CB-01 Ace to shutdown the Megazord. Through the Go-Busters bask in their victory, the moment is ruined when Hiromu offended Yoko.
- Hiromu Sakurada (桜田 ヒロム Sakurada Hiromu): Katsuhiro Suzuki (鈴木 勝大 Suzuki Katsuhiro)
- Hiromu Sakurada (child): Ryu Hashizume (橋爪 龍 Hashizume Ryū)
- Ryuji Iwasaki (岩崎 リュウジ Iwasaki Ryūji): Ryoma Baba (馬場 良馬 Baba Ryōma)
- Ryuji Iwasaki (teenager): Koudai Matsuoka (松岡 広大 Matsuoka Kōdai)
- Yoko Usami (宇佐見 ヨーコ Usami Yōko): Arisa Komiya (小宮 有紗 Komiya Arisa)
- Yoko Usami (child): Kokoro Hirasawa (平澤 宏々路 Hirasawa Kokoro)
- Cheeda Nick (チダ・ニック Chida Nikku, Voice): Keiji Fujiwara (藤原 啓治 Fujiwara Keiji)
- Gorisaki Banana (ゴリサキ・バナナ Banana Gorisaki, Voice): Tesshō Genda (玄田 哲章 Genda Tesshō)
- Usada Lettuce (ウサダ・レタス Usada Retasu, Voice): Tatsuhisa Suzuki (鈴木 達央 Suzuki Tatsuhisa)
- Takeshi Kuroki (黒木 タケシ Kuroki Takeshi): Hideo Sakaki (榊 英雄 Sakaki Hideo)
- Miho Nakamura (仲村 ミホ Nakamura Miho): Fuuka Nishihira (西平 風香 Nishihira Fūka)
- Tooru Morishita (森下 トオル Morishita Tōru): Naoto Takahashi (高橋 直人 Takahashi Naoto)
- Enter (エンター Entā): Syo Jinnai (陳内 将 Jinnai Shō)
- Messiah (メサイア Mesaia, Voice): Seiji Sasaki (佐々木誠二 Sasaki Seiji)
- BurnerRoid (バーナーロイド Bānāroido, Voice): Rintarō Nishi (西 凛太朗 Nishi Rintarō)
- Yousuke Sakurada (桜田ヨウスケ Sakurada Yōsuke): So Yamanaka (山中 聡 Yamanaka Sō)
- Michiko Sakurada (桜田 ミチコ Sakurada Michiko): Michiko Hosokoshi (細越 みちこ Hosokoshi Michiko)
- As part of Super Hero Time, this episode aired alongside Kamen Rider Fourze episode 25, Graduation Reluctance.
- A catch-up talk of the first twenty episodes of Tokumei Sentai Go-Busters was aired as part of the Super Hero Max 2012 special event on TV Asahi. 
- A CB-01 was briefly seen behind an Alpha in the Energy Management Center before it was teleported to Hyper Space.
Tokumei Sentai Go-Busters Volume 1 features episodes 1-4: Mission 1: Special Mission Task Force, Assemble!, Mission 2: A Promise Made 13 Years Ago, Mission 3: GT-02 Animal, Deployed! and Mission 4: Special Ops and Determination.