When Vicky tries to return to the campsite and her family , an earthquake causes an avalanche , and Zachary is trapped between some rocks .
As the Austins search for him , Zach lures Vicky to a remote mountainside to speak with her privately .
When Vicky tries to return to the campsite and Vicky 's family , an earthquake causes an avalanche , and Zachary is trapped between some rocks .
As the Austins search for him , Zach lures Vicky to a remote mountainside to speak with her privately .