Shin Seiki Evangelion - 11: In Still Darkness

EVA-00 is now fully operational, a good thing since the Angels have renewed their attacks on the NERV base, this time with a spider-like monster that uses acid as its weapon. Mysteriously, the base has lost all electricity--probabl­y not the Angel's doing--and to get to the EVAs the three young pilots must undertake a perilous journey within the now powerless base. Once in the hangar, Shinji is surprised to see his father work like a madman to prep the EVAs for battle. Can the three EVAs climb a huge vertical shaft and team up to destroy the Angel?

(Synopsis courtesy of Protoculture Addicts magazine)