The game revolves around a young man named Daniel Garner, who is happily married to his wife Catherine. At the start of the game, Daniel is about to take Catherine out for a birthday meal. As they drive towards their destination at high speed, in the pouring rain, Daniel takes his eyes off the road to look at his wife and While his attention is diverted, he ploughs their car into a truck. Both of them are killed instantly in the crash. While Catherine manages to make it to Heaven and lives in harmony, Daniel is trapped in Purgatory. One day meeting an accomplice called Samael, he is told that in order to receive purification, he has to kill four of Lucifer's generals in order to prevent a war between Heaven and Hell. Lucifer has been secretly organizing a massive army that could overwhelm Heaven, taking over Purgatory in the process. Small portions of the army are already beginning the march. With little choice available to him, Daniel accepts the task. With the forces of Hell seizing and corrupting various parts of Purgatory, Daniel goes through different and random phases of history within Purgatory, which range greatly from ancient times to the modern era. These include Medieval Europe, Babylon, the Crusades, 1800s and even a time slice of modern industry.