First check your invetory.
You should have a spray.

Go to the plane in the front of him from outside you see small hatch you can open.
Its near the front windows from out side open it.
Get all the stuff .

Now go inside the plane take a small puppy dog toy from the carton box.
Go to the swamp .
Use the spray on rock.
Try climb on it this smal animal will come and you fall.
Now use the whisky drink on the dog in your invetory .
Then put the dog below the rock you tried to climb on the ground.
Watch the movie.

Now you climb on the rock again and pass.

Dont forget to use the key on the box inside the plane where it written KEEP CLOSE.
The key is broken . use the broken glass on the branch wood in invetory.
Then you have this magnifying glass use it with the wood branch on one of the sun beam lights out side the plane. he will go and put it all togeather on ground.
Now use the key on it it will heat the key .
Use the key inside the plane open the box take what there is there.
Go the rock climb you will see a bridge read all sign and see everywhere then use what you found with the key on the bridge you passed it and chapter two.

If you have any problems with what i said tell me.