Fullmetal Alchemist: Brotherhood (2009)

S1E16 Footsteps of a Comrade-in-Arms

Following the revelation of Hughes's tragic end, Ed and Al are consumed by grief and remorse. Meanwhile, Envy continues to lurk among the State Alchemists, blending in unnoticed. Additionally, another Homunculus is poised to breach their defenses and penetrate their ranks.