I'll take a wild stab. If one can assume (whiich I do not condone. It is a bad habit) the post is related to the one directly above it, then I expect the which of your enquiry is Call of Juarez: Gunslinger.
I really enjoyed the first CoJ. The preacher was a fantastic character. I didn't mind what little I played of the second game (bound my blood? or something), but I never got far before other titles at the time distracted me away and I never went back. The third game (Cartel) is generally considered terrible. The fourth game, Gunslinger, is usually held in pretty high regard.
The first game was recently the "free with purchase" title over on IndieGala. A tad miffed I missed it at the time. If the series comes here to GOG I'd gladly grab 1,2 and 4, but pretty sure I (and everyone else, it would seem) can do with out the third.