Xbox Evolved writes:
"To get an understanding of Metro 2033 you'll need to know the general synopsis: It's a post-apocalyptic game set in the metro system of Moscow, Russia in 2033 (go figure). A nuclear war broke out approximately 20 years ago and you, as a child, were on the surface (read: not in the subway) for only your first few months of birth. The game starts off with a foreshadow scene that you will later come back to. You play as Artyom, and through that opening scene, about 25 minutes in length, your journey begins. "