T3
Fuji TV · To Be Determined
Thunder 3
Anime, Science-Fiction · 2026
Last aired: S1 E12, FINAL ATTACK · 2026-09-30
Unremarkably ordinary middle schoolers, Pyontaro, Hiroshi and Tsubame, wander into an extraordinary adventure when Pyontaro's little sister goes missing.
Season 1
E1
SMALL THREE
2026-07-08 · 30 min
Pyontaro, Hiroshi and Tsubame — the Small 3 — load up an odd disc from their teacher. When they're not looking, Pyontaro's little sister Futaba vanishes.
E2
MULTIVERSE
2026-07-15 · 30 min
Stranded in a new world, the Small 3 realize they have incredible powers. They meet other versions of themselves and learn how this reality differs.
E3
ALIENS
2026-07-22 · 30 min
Futaba, held captive by aliens, is attacked with a heat ray gun inside the spaceship. However, she remains unharmed and wanders around the spaceship. Meanwhile, Small 3 goes to Doc in the "Multiverse" to get clues about Futaba's whereabouts. Just then, he spots a parent and child in the city being held at gunpoint by aliens.
E4
MR. SEGAMI
2026-07-29 · 30 min
As college student Segami struggles with his dystopian world, a hot schoolmate hands him an enticing flyer. Hoping to meet girls, he finds something else.
E5
REBELLION
2026-08-05 · 30 min
With his mind in a whirl, Segami runs into the Small 3. They witness a bold fighter pilot pit his life against an alien ship. Will it light a fire?
E6
GAME ON!
2026-08-12 · 30 min
While imprisoned in a spaceship, Futaba encounters a mysterious life form named Kyu-chan and they begin to act together. Meanwhile, on Earth, the "Rebellion" begins its guerrilla warfare against aliens in the Shibuya Mission. Segami, nervous about using unfamiliar equipment and firearms, receives the secret weapon "Tsuyokunaru" from former SAT member Sumeragi and heads to the battlefield.
E7
COUNTERATTACK
2026-08-19 · 30 min
Aliens surround a sleeping Futaba! In Shibuya, Segami and his comrades fight fiercely but lose ground. As he retreats, he spots Tashiro under attack.
E8
THE STRANGERS
2026-08-26 · 30 min
Futaba faces off against a squad of alien soldiers to protect her new friend. Facing heavy losses, Segami and the Rebellion turn to their secret weapon.
E9
THE STRONG MEN
2026-09-02 · 30 min
Genius commandeers an alien walker and leads a counterattack. But two fearsome alien soldiers are en route. Meanwhile, Doc and the others seek answers.
E10
TIME IS UP
2026-09-09 · 30 min
As the Small 3 soar toward Shibuya, Genius runs out of options against a relentless alien warrior. Reinforcements arrive — but will it be enough?
E11
WE ARE "THUNDER 3"
2026-09-16 · 30 min
The Small 3 finally touch down in Shibuya. As they unleash their power against giant aliens, a livestreamer broadcasts their fight to the world.
E12
FINAL ATTACK
2026-09-30 · 30 min
Pyontaro, Tsubame, and Hiroshi had subdued the aliens. Immediately afterward, a laser beam was fired from the flying battleship above, hitting Tsubame directly. Seeing his comrades attacked right before his eyes, Pyontaro gave in to his emotions and charged at the flying battleship, crying. Miraculously, that battleship was where Futaba was being held captive.
TV listings and show data from TVmaze.