In the inaugural 1998 masterpiece that launched a legendary franchise, Tom Clancy's Rainbow Six follows the creation of "Rainbow," a secretive, elite multinational counter-terrorist unit led by Director John Clark. Set in the then-near future of 1999, the game thrusts players into a gripping geopolitical thriller as Rainbow is deployed to neutralize a sudden, suspicious surge in global terrorist attacks. As the team successfully thwarts operations ranging from a hostage crisis at an amusement park to a biological raid in a research facility, they uncover a sinister thread connecting them all. The mastermind is Horizon Corp., a radical eco-terrorist corporation plotting to release a devastating global virus called "Brahma" to wipe out most of humanity, leaving only a chosen few to rebuild a pristine Earth. It is a high-stakes race against time where tactical precision and seamless teamwork are the only things standing between a madman's utopia and total human extinction.