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Poster of Thunder 3

Anime 2026 24 min 1 season

Thunder 3

サンダー3

Watch on Netflix
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Where to watch in Gibraltar

Checked October 11, 2026

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Available in 129 other countries 129 with streaming

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Overview

Unremarkably ordinary middle schoolers, Pyontaro, Hiroshi and Tsubame, wander into an extraordinary adventure when Pyontaro's little sister goes missing.

Cast

Seasons and episodes

1 season12 episodes

Season 1

202612 episodes

  1. E1 SMALL THREE

    24 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.

  2. E2 MULTIVERSE

    24 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.

  3. E3 ALIENS

    24 min

    Futaba's abductors subject her to tests, but she just wants her big bwudder. The Small 3 continue the search for Futaba and encounter a tense standoff.

  4. E4 MR. SEGAMI

    24 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.

  5. E5 REBELLION

    24 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?

  6. E6 GAME ON

    24 min

    The Rebellion announces a guerrilla attack in Shibuya and Segami resolves to join. Meanwhile, a distraught Futaba stumbles upon a furry winged creature.

  7. E7 COUNTERATTACK

    24 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.

  8. E8 THE STRANGERS

    24 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.

  9. E9 THE STRONG MEN

    24 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.

  10. E10 TIME IS UP

    24 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?

  11. E11 WE ARE “THUNDER 3”!!

    24 min

    The "Small Three" arrive as live-streamed reinforcements to battle alien invaders, save Futaba, and officially debut as "THUNDER 3".

  12. E12 FINAL ATTACK

    24 min

    The cry rings out around the world for the Thunder 3! Humanity's last hope and their saviors against the aliens!

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