The second chapter begins with a short introductory cut-scene, after which we take control of the hero. Our first goal is to "Find targets for Daniel's power practice". To do this, we can ask the brother to lift up Mushroom the dog, "Shooting range" cans, the rock on the other side of the river or the rock on our side of the river. Move the camera on the object and hold E. A new option will appear - Ask to lift - confirm by pressing the LMB.
It is impossible to lift up the dog, but you can pick up the cans and the stone on our side of the river. After that, we participate in a snowball fight - use the mouse to aim right next to the brother (see the picture above).
Then, we go along the river to the wooden platform with "Canteens". We fill it up with the brother's help - scroll the mouse to the blue text and confirm by pressing LMB. After that, we go to the house on the hill. The area to the right of the platform only has a small glade with an old canoe you can examine. Daniel can lift up a wooden stick located right next to the tree, behind the garden table - "Wooden Stick".
After entering the house, the heroes will talk for a while. Sean must cook something for dinner. Let's start by starting a fire. Approach the fireplace and select "Make fire" option. Now, we need to find "Dad's lighter". To that end, head to the room where Daniel is. The lighter is on the bookcase with "Sean's stuff" written on it.
Go back to "Wood stove" and choose "Make fire". Now, you need to start cooking - go to the bathroom and take the "Pan". Go to the cabinet above the sink in the main room, and choose "Food". Select "Prepare meal" from the "Food" option. Dinner is ready. You get a new objective - "Have dinner with Daniel". Go to the wood stove and select the "Serve meal" option. After the cut-scene ends, you have to find a map that is in Daniel's stuff, Mushroom sits on it. Go to the table and choose the option to "Place map". After a short conversation, the boys will play dice. Press RMB to "Throw Dice". In my case, Sean lost and he got Mushroom's drawing on the backpack. After that, you can watch a cut-scene. Go to the brother's room and watch another cut-scene. Your new objective is to "Fill up the canteens for the road". To do this, go to the bathroom and interact with the "Container" by selecting the "Refill canteens" option.
Then, go to the backpack standing on the table and choose "Add canteens". You now have to find the brother and the dog. Hold "Q" and click LMB to call Daniel. However, this does nothing. Follow the tracks in the snow. A bloodstain is near the old well.
Go to the left towards the fallen tree. Press "Look" on the bandana, then "Crawl Under" to squeeze under the branch. Follow the tracks in the snow. Time for another cut-scene during which you have to make a choice - "Step Forward" or "Don't Intervene". I chose the second option. None of the options bring the dog back. However, if you select the second option, the boys can at least bury the dog...