Neon Genesis Evangelion S01 E24 The Beginning and the End, or 'Knockin' on Heaven's Door'

"Mankind's greatest fear is mankind itself."

Too frightened to face Misato or Rei, Shinji runs away yet again, only to meet and strike a friendship with Kaworu Nagisa, the replacement pilot for EVA-02. Kaworu's openness and friendliness provide much-needed comfort for the disturbed Shinji. However, suspicions abound over Kaworu's incredible synchronization abilities.