Irish Raindrops. Jatlas, Jack X Atlas Bioshock

((Atlas is his own person in this, not the person in the end of the game))

Jack is constantly listening to the sound of his radio friend, Atlas.

Atlas has been helping the man progress through all of these corridors and sections of the Rapture.

Fighting to stay alive, these young men find that they've only eachother now, no one else will help them and everyone else is their enemy.