It's 20 months after the end of season 5 and Jack is back. A series of suicide bombings across the United States has CTU pushed to their limits and the only way to stop the attacks will be to sacrifice their star agent. But are they being misled, and can Jack uncover the real mastermind before the bombings begin? Of course it's going to take more than weapons to stop Bauer from uncovering the truth, but what he finds it just the beginning of a much larger conspiracy involving nation states, the U.S. government, and a host of other factors that make this season of 24 the most exciting to date.