The game begins with an FMV that shows what happened PREVIOUSLY, playing some scenes from the two previous Tomb Raider games: Legend and Anniversary.

Back to the present, we see the explosion of Croft Manor. In the next cutscene, it is obvious that Lara did not expect something like that.

[Checkpoint] There is an opening behind you that leads to a room, but you cannot go anywhere from there. So, head forward and around the corner. Jump over the fallen rock and continue through the hallway and around the next three corners, avoiding the flames that can hurt Lara. Climb on the next ledge and go up the stairs. Use the switch on the left to open the nearby door; go through it.

[Checkpoint] Flaming room - Go to the right and crouch beneath the beams. Climb on the ledge above the fallen stones on the left and drop down at the other side. Approach the door and draw weapons. You will see a red reticule on the door, meaning that you have to shoot it. Do that to break it into pieces and go through the doorway. (This image shows the door you have to shoot.)

[Checkpoint] First hallway with flaming pit - Walk to the edge of the pit and jump to grab the narrow ledge on the right hand wall (as shown in this image). Traverse to the left if necessary and jump to grab the ledge above. Traverse to the left again and release to grab the ledge below. Continue traversing to the left. When you cannot go any further, jump back to land on the floor.

Push the brown chest towards the wall. It will not stick to the wall, but it does not matter. Climb on the chest and angle Lara a bit to the right. Jump to grab the handhold on the wall and tTraverse to the right as much as you can. Jump to the right and the flaming pit. Use the Grapple to catch the metal ring on the door and pull it to throw it down and create a path above the pit. Go through the doorway.

Second hallway with flaming pit - You reach a second hallway with a flaming pit. Walk to the edge and again jump to grab the narrow ledge on the right hand wall. Traverse to the left if necessary and jump to grab the ledge above. Traverse to the left again and release to grab the ledge below. Continue traversiong to the left. When you cannot go any further, jump back to land on the floor.

Follow the hallway around to the right and go through the doorway.

Turn left and cross the balcony. At the end, turn right and use the Grapple to catch the metal ring above (as shown in this image). Run and jump off the edge. You will start swingning above the flames, so press Jump again when you are above the opposite stairs to release the Grapple and land on the balcony. Continue to the right and hang from the edge where there are no railings. Drop to the ground.

The cutscene shows Winston and Zip trying to get out from the main door. The latter points his gun towards Lara and shoots her. Lara evades and Winston tries to stop him, but Zip is determined that Lara must die. She screams "Wait!" and everything fades out.