Mobile Suit Gundam Thunderbolt (機動戦士ガンダム サンダーボルト) is 2015 ONA created by Sunrise based on the manga of the same name.The series will air a total of four episodes, and will initially be available digitally via an Electronic Sell Through service, where users will be able to download the episodes after purchase. In 2016, the compilation movie Mobile Suit Gundam Thunderbolt: December Sky was released worldwide, with a 2nd Season announced for Next Spring.
Gundam Thunderbolt's story happens during the One Year War of U.C. 0079, the Earth Federation and Principality of Zeon engage in a fierce battle at the "Thunderbolt Sector", a shoal zone in the former Colony Side 4 "Moore". After successfully infiltrating Zeon's sniper field, ace Federation pilot and jazz enthusiast Io Fleming is given control of the latest Gundam prototype.