

Episode 4: “The Trigger For Promotion”
- 4 of 25
- October 23, 2016
- 24 min
- Aired
| Series | Mobile Suit Gundam: Iron-Blooded Orphans 2nd Season |
|---|---|
| Episode | 4 of 25 |
| Japanese | 出世の引き金 |
| Original air date | October 23, 2016 |
| Episode length | 24 min |
| Studio | Sunrise |
| Previous episode | Episode 3: “Battle Before Dawn” |
| Next episode | Episode 5: “Inauguration of the Arbrau Defense Forces” |
| Streaming | Crunchyroll, Netflix, Prime Video, Hulu |
“The Trigger For Promotion” is episode 4 of the anime Mobile Suit Gundam: Iron-Blooded Orphans 2nd Season. It first aired on October 23, 2016.
Summary
A summary of this episode has not been written yet.
Music in this episode
- OP 1“RAGE OF DUST” — SPYAIRAnimeThemes
- ED 1“Shounen no Hate” — GRANRODEOAnimeThemes
Where to watch
Streaming services that list Mobile Suit Gundam: Iron-Blooded Orphans 2nd Season. What you can watch depends on your country. Acino does not host any video; each link leads to the service's own page.
Episode guide
About the series

Mobile Suit Gundam: Iron-Blooded Orphans 2nd Season is a 2016 Japanese original anime television series created by Yoshiyuki Tomino. It is animated by Sunrise. It aired from October 2, 2016 to April 2, 2017, with 25 episodes.
Read the article →References
- “Mobile Suit Gundam: Iron-Blooded Orphans 2nd Season”. Kitsu. Retrieved October 23, 2026.
- “Kidou Senshi Gundam: Tekketsu no Orphans 2nd Season”. MyAnimeList. Retrieved October 27, 2026.
- “Mobile Suit Gundam: Iron-Blooded Orphans 2nd Season”. AnimeThemes. Retrieved October 23, 2026.
Episode titles and air dates come from Kitsu. The summary is written by Acino with AI assistance and checked so that it does not copy other sites.