Ok so this could be a TV Show or a Movie or a TV movie.
So from what I can remember- Students (teen or young kids) are on a camping trip. They go for a hike in the woods and one of the students gets pushed off a ledge, after an altercation (might have been because they were lost), he falls and breaks his leg. As the group carries on they begin to bicker and I think one or two go to help the boy who's leg is now broke. When the main group return to the camp they are confronted by a bear. and that's pretty much where my memory ends.