Dixie Gambit

From the introduction: The Dixie Gambit is an adventure module for STAR TREK: The Role Playing Game. In it, the players take the roles of agents of Star Fleet Intelligence Command assigned to discover the fate of Operation Dixie, an ill-starred covert mission sent into the Klingon Empire. The player characters must also try to recover the valuable intelligence data gathered by that lost mission and to determine the identity of the Klingon spy who sabotaged it.