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Full series · 1 credit per episode

Watch Thunder 3 online in HD

6.62026 · Returning Series1 seasons12 episodesHD · Subtitles
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About Thunder 3

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

Thunder 3 runs for 1 season. Every episode page keeps the show's order, so you can watch from the pilot to the finale without hunting for the next link. Episodes are bought individually for 1 credit.

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Episodes

Season 1 · 12 episodes

01

SMALL THREE

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.

2026-07-09 24m★ 7.0Now playing
02

MULTIVERSE

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.

2026-07-15 24m
03

ALIENS

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.

2026-07-22 24m
04

MR. SEGAMI

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.

2026-07-29 24m
05

REBELLION

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?

2026-08-05 24m
06

GAME ON

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

2026-08-12 24m
07

COUNTERATTACK

Aliens surround a sleeping Futaba! In Shibuya, Segami and his comrades fight fiercely but lose ground. As he retreats, he spots Tashiro under attack.

2026-08-19 24m
08

THE STRANGERS

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.

2026-08-26 24m
09

THE STRONG MEN

Genius commandeers an alien walker and leads a counterattack. But two fearsome alien soldiers are en route. Meanwhile, Doc and the others seek answers.

2026-09-02 24m
10

TIME IS UP

As the Small 3 soar toward Shibuya, Genius runs out of options against a relentless alien warrior. Reinforcements arrive — but will it be enough?

2026-09-09 24m★ 2.0
11

WE ARE “THUNDER ３”!!

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

2026-09-16 24m★ 2.0
12

FINAL ATTACK

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

2026-09-30 24m★ 1.0
Season 1

Thunder 3 FAQ

How much does it cost to watch Thunder 3?

Episodes cost 1 credit each. Credits are $1 each, so a full season costs the number of episodes in credits. Each episode you unlock stays in your account permanently.

Do I need an account to watch Thunder 3?

Yes. Create an account and add credits before unlocking an episode. Signing up is free and only needs an email and password.

How many seasons of Thunder 3 are there?

Thunder 3 has 1 season on Cineby, with 12 episodes in total. Start with season 1 below.

Where should I start watching Thunder 3?

Start with season 1, episode 1. The episode list on this page keeps the order, and the player moves to the next episode when one ends.

Can I watch Thunder 3 with subtitles on my phone?

Yes. The player includes a CC menu where available, and the whole site is built for mobile. Fullscreen and picture-in-picture are supported.

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