When an Angel resembling a coil of light arrives, Rei and Shinji are sent to battle it, but the assimilating ability of the foe prompts Rei to self-destruct the EVA-00 in order to kill it and save Shinji. Mysteries abound as a clone of Rei later appears in the hospital, and Ritsuko reveals the terrible secret of the "dummy plug" system to Misato and Shinji. Written by
Did You Know?
This episode marks the third time an Angel mentally connects with an Eva pilot. The first was between Shinji and Leliel in episode 16 (the young Shinji he speaks to is actually the Angel probing his mind). The second was Asuka and Arael (the infamous "mind rape" sequence) in episode 22. See more
[Rei is explaining why she doesn't recall her having saved Shinji the day before
I think it's because I am the third one.