To the surprise of many given his past draft-dodging scandal, he then joined "Real Men", a weekly show in which six male celebrities are filmed documentary-style as they enter army boot camp. This was Jang's first regular appearance on a variety/reality show in his 17-year acting career. He said, "I'd like to use this opportunity to reflect on myself through "Real Men" and to experience army life again." He appeared on "Real Men" from June 2013 to February 2014. He then wrote a collection of essays on his life experiences titled "Jang Hyuk, Hot-Blooded Man", published on August 6, 2013.