A Certain Scientific Railgun S Episode 3: Project Radio Noise
Episode 3 of 24 of A Certain Scientific Railgun S, aired April 26, 2013, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Rumors swirl about that Misaka is the template for a project to produce Level 5 clones. When Nunotaba refers to her as the "Original," Misaka decides to check her out, and learns that she worked at the hospital where Misaka submitted her DNA map.