You get informed by this woman that she has taken your brother and that you have to get into jail to kill a certain person so that you can get your brother back. To get into jail, you decide to rob a bank. Once you're in jail you kill the person that this mysterious woman told you to. Now you get to escape from this high security prison.
You escape through the pipe systems and end up in a train station. Now the Cops are on you. You fight your way through a couple of more environments until you reach your brother. So the question is, can you save your brother's life?