Uncharted: Drake's Fortune/Walkthrough

The story of Uncharted: Drake's Fortune is split into into twenty-two chapters. This walkthrough serves as a guide for mandatory story progression, along with treasure guides.

Chapter Index
Provided below are links to each individual chapter. Each chapter should have a plot summary, a walkthrough, and a guide to finding the treasures.
 * Chapter 1: Ambushed
 * Chapter 2: The Search for El Dorado
 * Chapter 3: A Surprising Find
 * Chapter 4: Plane-wrecked
 * Chapter 5: The Fortress
 * Chapter 6: Unlocking the Past
 * Chapter 7: Out of the Frying Pan
 * Chapter 8: The Drowned City
 * Chapter 9: To the Tower
 * Chapter 10: The Customs House
 * Chapter 11: Trapped
 * Chapter 12: Heading Upriver
 * Chapter 13: Sanctuary?
 * Chapter 14: Going Underground
 * Chapter 15: On the Trail of the Treasure
 * Chapter 16: The Treasure Vault
 * Chapter 17: The Heart of the Vault
 * Chapter 18: The Bunker
 * Chapter 19: Unwelcome Guests
 * Chapter 20: Race to the Rescue
 * Chapter 21: Gold and Bones
 * Chapter 22: Showdown