G.I. JOE has an enemy. But until now, that enemy has remained hidden. Join undercover agent CHUCKLES on his descent into the world of COBRA. His mission is to obtain valuable intel for the G.I. JOE team, but he just might sacrifice his soul to do it. This volume collects issues #1 to 5, plus the 5-page prequel, as well as the Xamot and Tomax follow-up. Written by Christos N. Gage and Mike Costa, with art by Antonio Fuso and a cover by Howard Chaykin.