Subtitles by DramaFever &amp;lt;i&amp;gt;The NSS is a secret National Security Service.&amp;lt;/i&amp;gt; &amp;lt;i&amp;gt;Before President Jo Myung Ho was elected, its true identity was kept in complete secret.&amp;lt;/i&amp;gt; &amp;lt;i&amp;gt;All the NSS agents have signed the agreement to carry out their mission in the shadows.&amp;lt;/i&amp;gt; &amp;lt;i&amp;gt;Although they may succeed in their mission, their country will never know their names.&amp;lt;/i&amp;gt; &amp;lt;i&amp;gt;Should they fail, they won't receive protection or recognition from the country.&amp;lt;/i&amp;gt; &amp;lt;i&amp;gt;IRlS. 