In a world besieged by gigantic humanoid creatures known as Titans, humanity seeks refuge within massive walls to evade their insatiable hunger. After years of peace, Eren, Mikasa, and Armin yearn to explore the unknown beyond the barriers. However, their dreams are shattered when a colossal Titan breaches the defenses, propelling Eren to vow the annihilation of all Titans. Determined to reclaim a world free from fear, Eren embarks on a perilous mission, challenging the fate of mankind.