It gives many details on how they are surrounded in a forest. Which is the worst scenario. It could cause a lot of different problems. The most important conflict is being in the forest. No place to run, and the fire can spread FAST.
The summary shows how the hikers don't have service and are too far from any town to get help, this means that they are in a secluded (Sheltered/ not seen by many people) area. This is the most important in the story because it means that they cannot call for help or run and get help, so they will have to work with the family to put out the fire because they can't get help from anyone else to do it.
The campers being family does nothing to affect the plot, the hikers being in the mountains don't mean anything and the hikers being young could only mean that they don't know what to do which isn't as important as them being secluded.
