Movies like this don't work...
...when the people you're supposed to be rooting for are so dumb and unlikable you want them to get killed....
They were annoying on the plane, they criticized the driving of the guy giving them a free ride, the wife crying in the bathroom was ridiculous, and then it just got worse from there. It was unbearable to watch them. The absolute worst was when the moron wife decided to give herself up to 6 guys with guns so the husband could grab a gun. What was the plan after that?