I feel like the plot undercut the otherwise cool metaphor that the gorge represented.

East and West, separated by nothing but their deepest fears. Two killers searching for human connection but unable to reach the nearest person. How fucking cool is that? You can do so much!

Then you find out that there isn’t really any East/West divide, they’re both working for the same bad guys. Traversal of the gorge plays like a joke instead of being a serious moment of character development. Then the ending is a bunch of run-shoot-explode.