It introduces Ooyama Toshiro as the short but skilled shikomizue/sword cane wielding protagonist who is also very bad with guns. Matsumoto's classic hero, Captain Harlock, also appears as Toshiro's expert gunslinger pal in the Old West during Gun Frontier.
In sharp contrast to other Matsumoto's stories, Gun Frontier is a comedy adventure rather than a space opera. Also, unlike other Harlock stories, in Gun Frontier, Harlock is depicted as Toshiro's sidekick.
Since the original manga, there has been a novel and a 2002 anime adaption of the series. In Spanish speaking countries the anime was renamed as Lawless Frontier ("Frontera Sin Ley").
