Mobile Suit Gundam Thunderbolt: December Sky is a 2016 ONA (Original Net Animation) compiled into a feature-length film. It serves as the first arc of the Gundam Thunderbolt series.
The story unfolds in UC 0079, during the final months of the One Year War. Two ace pilots become locked in a vicious, personal duel:
The conflict escalates when both sides attempt to secure a key strategic asset hidden in the debris field. What begins as military necessity devolves into a blood-soaked vendetta – neither pilot willing to back down.
Yes if you like:
No if you need:
(Do not stream from unauthorized sites — supporting official releases helps studios that produce high-quality animation.)
The keyword search "Mobile Suit Gundam Thunderbolt December Sky free" suggests you want to save money. That is understandable. Anime is expensive. However, this is one of the rare cases where the free version is readily available if you know where to look.
Avoid the pirate sites. Stick to Tubi, Pluto TV, and GundamInfo. You will get a legal, high-definition stream for exactly $0.
Once the opening credits roll and you see the Psycho Zaku drifting through the shoal zone while a lonely saxophone plays, you will understand that this isn't just "free anime." It is a harrowing, beautiful, and unforgettable experience. Whether you pay with money or with your attention (ads), December Sky is worth it.
Final Verdict: Available for free legally on Tubi and GundamInfo rotating schedule. Watch it immediately. You will never hear jazz the same way again.
Did you find this guide helpful? Check your local GundamInfo channel for updates, as the free movie windows change monthly.
Mobile Suit Gundam Thunderbolt: December Sky is a feature-length compilation of the first four episodes of the Mobile Suit Gundam Thunderbolt ONA (Original Net Animation). Set during the One Year War in U.C. 0079, it tells a gritty, adult-oriented story of two ace pilots—Io Fleming and Daryl Lorenz—trapped in a brutal cycle of personal vengeance within the debris-filled "Thunderbolt Sector". Where to Watch for Free
Finding a legal "free" stream for December Sky often depends on limited-time promotions, as it is not permanently available for free on major platforms. Best place (preferably free) to watch Gundam Thunderbolt?
Finding Mobile Suit Gundam Thunderbolt: December Sky for free depends on the current rotation of official promotional events, as it is not permanently available on free platforms. Official Free Sources (Rotational)
GundamInfo YouTube Channel: This is the primary official source for free Gundam content. Bandai Namco frequently uploads full movies and series, including December Sky, for limited periods (often one month). You should check the Gundam Channel INTL regularly to see if it is currently in rotation.
Crunchyroll (Limited): Some Gundam titles are occasionally available for free in standard definition with ads on Crunchyroll. However, December Sky is often excluded from their free catalog unless a special event is active. Subscription & Paid Options mobile suit gundam thunderbolt december sky free
If the movie is not currently rotating for free, you can find it on the following platforms: Netflix: Available in certain regions (such as Japan).
Amazon Prime Video: Sometimes available for rent or purchase in specific territories.
Physical Media: You can purchase the Blu-ray through retailers like Amazon. Key Details for Viewers
Finding a way to watch Mobile Suit Gundam Thunderbolt: December Sky
for free officially often depends on temporary rotations by the rights holders. 1. Official Free Streaming (Rotation-Based)
The most reliable source for free, legal access is the official Gundam YouTube channel, GundamInfo. Bandai often rotates various series and movies for free viewing for limited times.
Check the GundamInfo YouTube Channel: Use the search bar on their channel or check their "Video" and "Playlist" tabs.
Watch for Announcements: They typically announce free streaming periods on the Official Gundam Website.
Availability: When available, they often provide both English dubbed and subtitled versions in HD. 2. Subscription Services
If it is not currently on rotation for free, it is frequently available on major subscription platforms (which may offer free trials for new users):
Is there a legal site/app that has Gundam Thunderbolt : r/anime
Mobile Suit Gundam Thunderbolt: December Sky is a compilation film of the first season of the Thunderbolt
ONA (Original Net Animation). It follows two rival pilots during the One Year War in U.C. 0079. Plot Summary
The story is set in the "Thunderbolt Sector," a dangerous shoal zone filled with space debris and constant electrical storms. GUNDAM Official Website The Conflict: Moore Brotherhood
, a unit of Earth Federation survivors, fights to reclaim this territory from the Zeon's Living Dead Division Overview: What is December Sky
, a unit primarily composed of amputee soldiers testing experimental technology. The Rivals: Io Fleming (Federation): A jazz-loving ace pilot who takes command of the prototype Full Armor Gundam Daryl Lorenz (Zeon):
An expert sniper who eventually undergoes further surgery to interface his nervous system directly with the Psycho Zaku via the "Reused P Device". The Climax:
Their personal rivalry escalates into a brutal, final showdown amidst the electrical storms, where both pilots are pushed to their physical and psychological limits. Where to Watch for Free
The movie is periodically made available for free by the official rights holders:
You can read the Gundam Thunderbolt manga for free for two days.
Mobile Suit Gundam Thunderbolt: December Sky is a 2016 compilation film collecting the first season of the Thunderbolt ONA, renowned for its gritty tone and free-form jazz score. The film, focusing on the conflict between Io Fleming and Daryl Lorenz, is sporadically available for free on official platforms like the GUNDAM.INFO YouTube channel. For more details, visit the official Gundam Official Website.
Mobile Suit Gundam Thunderbolt: December Sky is not permanently available for free on any major subscription streaming service. However, fans can legally watch it during limited-time promotional windows on the official GUNDAM.INFO YouTube Channel.
When the official channel rotates its lineup, the movie becomes unavailable for free and must be purchased or rented via digital platforms. Below is a complete breakdown of where to watch this high-octane mecha film, its story, and what makes it a must-watch in the Gundam franchise.
🎬 Where to Watch Mobile Suit Gundam Thunderbolt: December Sky
Because the availability of Gundam titles changes frequently, finding the movie requires knowing where to look:
GUNDAM.INFO on YouTube: The official Gundam YouTube channel frequently streams compilation movies like December Sky and its sequel, Bandit Flower, for free with ads during special promotional campaigns.
Premium Streaming: Outside of YouTube's promotional windows, the movie occasionally appears on regional catalogs of platforms such as Netflix Japan or other regional anime streamers.
Digital Purchase & Blu-Ray: For uninterrupted access, fans can purchase the movie digitally or buy the physical Bandai Namco Filmworks / Sunrise Blu-Ray to enjoy the complete director's cut, complete with the English dub. 🛰️ The Plot: War in the Shoal Zone
Set during the Universal Century 0079 in the final stages of the One Year War, December Sky focuses on the brutal battle for the Thunderbolt Sector. This region is a graveyard of destroyed space colonies and warships, filled with electrified debris that creates constant flashes of blinding lightning.
Earth Federation Forces Principality of Zeon (Moore Brotherhood) (Living Dead Division) │ │ Ace Pilot: Io Fleming Ace Sniper: Daryl Lorenz Mecha: Full Armor Gundam Mecha: Psycho Zaku Timeline: It is set during the One Year
The movie tracks the intense personal rivalry between two ace pilots on opposing sides of the conflict:
Io Fleming (Earth Federation): A reckless, music-loving pilot who thrives on the adrenaline of combat and is assigned to pilot the heavily armed prototype Full Armor Gundam.
Daryl Lorenz (Principality of Zeon): A veteran sniper who has lost his lower limbs in prior battles. To counter the Federation threat, he undergoes a procedure to connect his nervous system directly to the experimental Psycho Zaku. Best place (preferably free) to watch Gundam Thunderbolt?
Title: 🎧 Jazz, Moans, and Tragedy: Why You Need to Watch Mobile Suit Gundam Thunderbolt: December Sky
Body:
If you think all Gundam shows are just bright colors and toys smashing together, Thunderbolt is here to shatter that perception. The compilation movie, December Sky, is currently making waves again, and for good reason—it is arguably one of the most visceral entries in the entire franchise.
The Vibe: Imagine a gritty, WWII-style space opera scored by melancholy Jazz and the groans of wrecked metal. The animation is fluid, the destruction is terrifyingly realistic, and the Mobile Suits (especially the Full Armor Gundam) feel like hulking masses of heavy machinery rather than plastic models.
The Story: Set in the Thunderbolt Sector—a shoal zone of space debris—this isn't a story about heroes. It’s about soldiers. You have Io Fleming, a jazz-loving pilot fighting for the Federation, and Daryl Lorenz, a Zeon sniper who has sacrificed his own limbs for his mission. Their rivalry is personal, brutal, and heartbreaking.
How to Watch "Free": While official licenses shift, December Sky (and its sequel Bandit Flower) is known for being accessible on various free streaming platforms.
Whether you are a hardened Zeon veteran or a Federation rookie, December Sky is a masterclass in atmospheric sci-fi. Just don't expect a happy ending.
Discussion:
#Gundam #Thunderbolt #DecemberSky #MobileSuitGundam #Anime #Mecha #FullArmorGundam #Zeon #Federation #SciFiAnime
Mobile Suit Gundam Thunderbolt: December Sky (2016) is a high-octane, gritty compilation film that adapts the first four episodes of the Gundam Thunderbolt ONA. Set in the final months of the One Year War (U.C. 0079), it is widely regarded as one of the most visually stunning and tonally dark entries in the Gundam franchise. 🚀 Core Conflict & Plot
The story focuses on a personal, blood-soaked rivalry between two ace pilots in the Thunderbolt Sector—a dangerous "shoal zone" filled with space debris and constant electrical discharges.
Io Fleming (Earth Federation): A reckless, jazz-loving pilot who takes command of the experimental Full Armor Gundam.
Daryl Lorenz (Principality of Zeon): A elite sniper in the "Living Dead Division," composed of amputee soldiers. He eventually undergoes a surgical procedure to interface directly with the Psycho Zaku to counter the Gundam.
Unlike many Gundam series, this film shuns political grandstanding to focus on the psychological toll of war. It depicts both sides as morally gray, showing the Federation's use of child soldiers and Zeon's extreme physical sacrifices for military power. 🎷 Key Features
