GOOD THING: Three Words: Zombie Jonah Hex.
BAD THING: There's not a lot of substance here. The story with Jonah Hex and the descendant of his arch-enemy aside, this is just your basic zombie horror story. The only thing that separates this from any other zombie story is the added twist that the zombies in this case are Old West heroes from the classic days of DC Comics.
The Final Verdict: It's a rippin' yarn. The kind of story that could almost only be told in the comic book genre. It's not particularly deep but it is what it is: a story full of zombie cowboys fighting scientists and superheroes while chasing after what is essentially a cursed ring. If that sentence doesn't raise your interest, then you'd best skip this one.