This portion of The Last of Us 2 Walkthrough Chapter 1: Jackson – The Chalet is mostly storytelling. There are 0 collectibles or points of interest.
The Chalet Walkthrough
After the opening cinematic run towards the cabin and head through the hole in the wooden fence. There’s some ammo in the bedroom you enter into. Continue ahead and walk down the stairs to the living room (sleeping bags on the floor). Finally, go into the kitchen and take the open door leading into the basement.
A cinematic will play leading into the next section: Chapter 1 Jackson – Packing Up.
Source: IGN.com The Last of Us 2 Walkthrough Chapter 1: Jackson – The Chalet