If you watch Lost backwards, it’s about a group of people coming out of a church to live on an island that keeps teleporting. So they get sick of it and try to blow it up with a nuke but this causes a boat to show up. They try to escape from the boat and run through the forest for days and days and spot a polar bear which scares everyone. This polar bear then scares them to the point of them building a plane to escape to Australia to get as far away as possible from it.