http://www.cnn.com/2015/06/29/us/new-york-prison-break/index.html
there you go. exactly what I thought so. there was no plan B when their getaway scheme failed. I'm not surprised that they planned to go to Mexico instead of Canada because logistical speaking... Canada is not an ideal place for an escapee to be in unless he has resource in there and most criminals don't. It's too easy for an escapee to get caught there. guarantee unless you plan to hide out in the boondock for rest of your life like Alberta and work as a logger or miner.
Mexico? nobody cares and nobody asks. same for any poor country. much easier to move around there and it does not require much currency to do so. if he made it into South America thru Mexico - he will be gone forever because no government is willing to spend much time, resource, and money on some insignificant murderer in some country far away. bounty hunter is usually not motivated enough to do it because of complicated legal issues - kidnapping, illegal possession of firearms, entering a country under false pretense, vigilantism, etc. most countries do not recognize bounty hunters.