I LOVE the backstory about Samuel Colt and the devil’s trap. That’s so ingenious! Question: Did Colt’s railway fail? The demons blasted through it, right?
I always understood that JAKE laid a charge and blew the rail road tracks? We seen them ripped apart in one shot. To me they needed a human both to enter the devils trap to get to the Hell gate AND to take care of an escape route.
But I could be totally wrong.