Buried

You wake up in complete darkness. You are alone and can not move. You feel around and can grab your phone. It is low battery but you turn on the flashlight anyway. All you can see is wooden planks in all directions. You have been buried alive and now you need to find a way out. You are running low on oxygen and your battery is running out, you do not have much time. Will you escape, or is this your final resting place?

Résumé

You wake up buried alive. You are running out of oxygen and you can't remember how you got here. There must be a way out, can you figure it out in time?