The game's story is based on the Tom Clancy book with the same title. You play as a team of elite fighters trained for hostage rescue and anti-terror operations. Each team member is the best in their field. The first mission is to recapture a TV station seized by terrorists who broadcast their demands into the world. They have hostages, too, so you need to ensure that no one gets hurt. But that's only the beginning of a global campaign against terrorism taking on 15 missions, each with a secondary and primary objective.
In this version, there are various team members to choose from which vary in their statistics (e.g. stealth, aim or reflex), and equipment. You can't make your own mission plans or switch between the team members (the others follow automatically), so it comes down to controlling a team member, shooting every terrorist you see and performing various tasks (disarming security systems etc.). After finishing the campaign, the game unlocks the "Lone Wolf" mode which allows you to replay the game with only one team member.