Now, you are playing as Josh, walk around the cave and watch the imaginary scenes. The only thing to do here is hit the pig head sticking out of the wall .
Now, as Sam do not enter the water immediately. To the right of the descent, you find a fortune totem #5. walk over to the left, where you find, Beth's watch. Now you can jump into the water.
In the water, there is one important object - Hannah's scribbled journal. While in the water, go to the left, of the watermill. Where you can climb up. The journal is in front of you. Finding it is necessary for Josh to live (butterfly effect Important Discovery).
Now, go to the right side of the lake and open the locked door. After a while, you find Josh and you switch to him. Stick to the left side of the corridor to find fortune totem #6. At the end of the path, go down into the water. Josh will be attacked by a wendigo and depending on whether you found Hannah's journal or not, he dies or lives.
If Jessica survived (or Jessica and Matt) a scene starts, where you need to get out of the mine. As soon as you spot the railway, go left (towards the camera) - there, you find loss totem #6. After that, there is not much to do here, but to survive, you need to hide twice instead of running, and also, while hidden, avoid moving.
Now, as Sam, you need to climb over the wall (arcade actions). Take the right path to get near the tree. On the left, there is danger totem #6. After that, just push ahead. While running headlong, you need to perform two arcade actions.
After you climb down into the basement, get ready for lots of action. First of all, run instead of locking the door, although the latter does not kill you either. Then, you need to stay and not move twice. The next correct option is save Mike instead of use the switch. Now, to have the rest of the friends in the shelter survive, you need to couple each option with hide and stand still after each time. This is the last series of actions in the game - butterfly effect The Result of Chaos.
Additional information: if you saved Josh, but you are wondering why it is not mentioned in the ending, wait for the credits to finish rolling, to see an additional cutscene.