 The protagonist of the game, Colonel John R. ("Rusty") Blade, is the commander of one of the largest security forces in the city of Freeport, HardCorps.Prior to the beginning of the game, Blade is working to rid the streets of a potent new recreational drug named U4, which is rapidly gaining popularity in Freeport and is rumoured to be able to cause genetic mutations to its users.Yet the source of the drug is still unknown, and its effects not entirely studied.