With caravan, heated conversation, and backing into each other

John Williams opts for relaxation: off to the campsite! But with a caravan behind the car, it turns out to be less relaxing than expected. Will they manage to pull themselves together, or will things go wrong again? Meanwhile, they have a poignant conversation with the parents of Shana Leurs, who died at the age of 22 after a traffic accident. What do they take away from this heavy encounter?