20 : Erwin Smith: 57th Expedition Beyond The Wa... -

While the official goal of the 57th Expedition was to secure a route to Shiganshina, Erwin’s true motive was a high-risk gamble to flush out a spy hiding within the military ranks.

Season 1, Episode 20, is widely regarded as one of the most defining moments for Commander Erwin Smith. It marks the transition of Attack on Titan from a story about survival into a high-stakes psychological game of wits and sacrifice. The Hidden Objective

In a shocking tactical move, the Female Titan allows the surrounding mindless Titans to devour her own body, creating a massive cloud of steam that she uses to escape in a Scout uniform. Leadership and the Philosophy of Change

Erwin's willingness to sacrifice hundreds of soldiers for a chance at capturing the enemy proves that for him, the only way to defeat monsters is to rise above humanity's limitations. Aftermath and the Cost of Failure

Despite being pinned, the Female Titan hardens her skin, preventing Levi and Miche from cutting out the human pilot.

Only veteran Scouts who had survived for five years or more were briefed on this true mission to ensure that any potential mole was kept in the dark. A Game of Wits: Capture and Counter-Strike