Season 1 is where it all began for me, those opening episodes had me hooked, yelling at the screen, and questioning everything about humanity. I remember staying up all night bingeing it back in the day, heart racing from the Titan attacks and those mind-blowing twists. If you’re just starting or revisiting this epic, let me geek out and break it down for you. We’ll cover Attack on Titan Season 1 intro, episode deets, killer characters, and a solid recap, all with that raw passion only a true fan can bring. Let’s charge into the walls!
Introduction to Attack on Titan Season 1
Attack on Titan Season 1 exploded onto the scene in 2013, based on Hajime Isayama’s manga that’s since become a global phenomenon, selling over 140 million copies and inspiring everything from games to live-action flicks. It’s significant in anime for blending brutal action with deep philosophy, pulling in fans who love gore, mystery, and social commentary. Seriously, it redefined what a shonen series could be, ditching typical power-ups for gritty survival horror.
The setting? Humanity’s remnants huddle inside massive walls, Mare, Rose, and Sina, protecting them from Titans, these grotesque, man-eating giants that appeared out of nowhere a century ago. The premise kicks off with a peaceful life shattered when a Colossal Titan breaches the outer wall, unleashing hell. Our heroes join the fight in the Survey Corps, uncovering secrets that make you rethink everything.
Themes hit hard: survival against overwhelming odds, the quest for freedom beyond the walls, and humanity’s internal struggles, like corruption, fear, and what it means to be “human.” It’s not just monster-smashing; it’s a mirror to our world, with moral gray areas that had me debating with friends for hours. As a fan, this season’s raw intensity set the bar sky-high for the rest of the series.
How Many Episodes in Attack on Titan Season 1
Attack on Titan Season 1 packs in 25 episodes, which originally aired from April 7, 2013, to September 29, 2013, on MBS in Japan, perfect for a weekend marathon if you’re like me and can’t stop once you start. It was a weekly drop that built insane hype, with fans theorizing non-stop.

Breaking it down by major story arcs keeps the momentum fierce:
- The Fall of Shiganshina (Episodes 1-2): The gut-wrenching opener where Titans invade, setting up Eren’s vow for revenge. Those first kills? Still haunt me.
- Humanity Rises Again (Episodes 3-4): Training montage vibes as Eren, Mikasa, and Armin join the cadets, building bonds amid despair.
- Battle of Trost (Episodes 5-13): Epic siege warfare with non-stop action, Eren’s first transformation blew my mind, and the sacrifices here hit like a truck.
- Eve of the Counterattack (Episodes 14-16): Post-battle cleanup, introducing the Special Operations Squad and ramping up mysteries.
- 57th Expedition Outside the Walls (Episodes 17-22): Venturing beyond the walls, facing the Female Titan, pure adrenaline with traps, chases, and betrayals.
- Assault on Stohess (Episodes 23-25): Climactic urban battle revealing Titan shifters among humans, ending on a massive cliffhanger that left me screaming for more.
The pacing is masterful, early episodes build world and characters, then explode into chaos. No fillers; every moment counts toward the bigger picture.
Main Characters of Attack on Titan Season 1
The characters in Attack on Titan Season 1 are what make it legendary, they’re flawed, relatable, and evolve in ways that stick with you. As a fan, I love how they’re not invincible heroes; they’re kids thrust into nightmare fuel.
- Eren Jaeger: The fiery protagonist, driven by rage after losing his mom to Titans. His mysterious power (that Titan-shifting reveal!) turns him into a symbol of hope and destruction. Voiced by Yuki Kaji, his screams are iconic.
- Mikasa Ackerman: Eren’s adoptive sister, a badass fighter with superhuman skills from her Ackerman heritage. She’s fiercely protective, often stealing scenes with her graceful combat, my go-to for cosplay inspo.
- Armin Arlert: The brains of the trio, Eren’s strategic bestie who’s physically weak but intellectually a beast. His plans save the day multiple times, showing smarts over brawn.
Supporting cast elevates it: Captain Levi Ackerman, the humanity’s strongest soldier with his no-nonsense attitude and insane spinning attacks, fans adore him for good reason. Commander Erwin Smith, the visionary leader risking it all for truth. Then there’s Hange Zoe for quirky Titan obsession, and folks like Jean Kirstein for that rival-to-ally arc.

The Titans as antagonists are terrifying, mindless eaters with creepy grins, but Season 1 hints at deeper lore, like intelligent ones pulling strings. Their significance? They represent existential threats, forcing characters to confront fear and grow. Fan favorites? Eren for passion, Mikasa for strength, Levi for cool factor, merch flies off shelves with these icons.
Attack on Titan Season 1 Recap
Spoiler alert if you’re new, but here’s a recap of Attack on Titan Season 1’s major beats, man, reliving this gives me chills. It starts with the Colossal and Armored Titans breaching Wall Maria, devouring Eren’s mom and scattering humanity. Eren swears to wipe out all Titans, joining the 104th Training Corps with Mikasa and Armin.
Key battles ramp up in Trost: Titans invade again, Eren “dies” but emerges as a Titan himself, plugging the hole and sparking hope. Twists pile on, Eren’s accused of being a monster, but Armin’s speech rallies allies. The arc ends with humanity’s first win, but at huge cost.
Mid-season introduces mysteries: Basement secrets in Eren’s home, government conspiracies. The 57th Expedition sees the Female Titan decimating squads, leading to chases and Levi’s squad shining. Betrayals hit hard, Annie Leonhart revealed as the Female Titan in the Stohess showdown, crystallizing herself after a brutal fight.
Character development shines: Eren grapples with his powers, Mikasa faces loss, Armin steps up as strategist. Cliffhangers? Annie’s capture, hints of more shifters, and Reiner/Bertholdt teases, setting up the mind-screw of later seasons.
Impact? Season 1’s conclusion was a game-changer, earning rave reception with 8.5+ ratings on IMDb and MyAnimeList. Critics praised its animation by Wit Studio, Hiroyuki Sawano’s epic score, and themes that hooked millions. As a fan, it left me obsessed, debating theories online, pure genius that launched AOT into stardom.

Attack on Titan Season 1 starts with Wall Maria being breached
If this review fired you up to dive into the walls or rewatch the carnage, grab some snacks and hit play, Season 1 is where the addiction starts! For more anime news, reviews, and updates, head over to AnimePalm, they’ve got the latest on all your favorites.
