To Fear But Fear Itself | [s3e5] Nothing

: When Batman is exposed to the toxin, he is forced to confront his own deep-seated insecurity: a vision of his deceased father, Thomas Wayne, calling him a "disgrace" and a "failure".

: Hanging from a burning zeppelin and struggling against the hallucinations, Batman utters his most famous signature line: "I am vengeance! I am the night! I AM BATMAN!" . This moment signifies his mastery over his own fear and his total commitment to his mission. [S3E5] Nothing to Fear But Fear Itself

In this landmark episode, Batman faces one of his most psychologically taxing adversaries: (Jonathan Crane). : When Batman is exposed to the toxin,

: Disgraced former professor Jonathan Crane seeks revenge against Gotham University for firing him over his unethical experiments. He uses a potent "fear gas" to induce nightmarish hallucinations in his victims. I AM BATMAN

While the phrase "" is a famous quote from Franklin D. Roosevelt's 1933 inaugural address, it is most notably used as a title for the tenth aired episode (often categorized as the third produced) of Batman: The Animated Series . Although your query specifies "S3E5," it is possible you are referring to this iconic episode or potentially a different series like Smallville , which featured the episode "Perry" as its fifth episode of Season 3. Batman: The Animated Series – "Nothing to Fear"

: With Alfred's emotional support, Bruce realizes his father would be proud. He eventually tracks Crane to his hideout and turns the fear gas against its creator, defeating him with his own weapon. Smallville Season 3, Episode 5 – " Perry " Nothing to Fear | Batman:The Animated Series Wiki | Fandom