24 (season 4)
The season starts with a train bombing. The bombing is used to get a device to control nuclear power plants. Terrorists kidnap Secretary of Defense James  Heller and his daughter, Audrey Raines. They plan to kill Heller on the internet to get past internet firewalls to use the device. Bauer stops them from killing Heller, but the terrorists gain control of power plants. Eventually, CTU gets control of most plants. CTU learns that the terrorist behind the events is Habib Marwan. He worked for McLennan-Forrester. The company sets off an EMP to destroy evidence of the terrorist. Later, terrorists get a stealth fighter and shoot down Air Force One. President Keeler cannot serve, and Vice-President Logan becomes president. Marwan's terror cells steal the nuclear football from the site of the crash of Air Force One. Jack finds evidence leading him to the Chinese consulate. At the consulate, the Chinese consul is killed in a gunfight. CTU eventually stops the missile, but Jack and his friends must fake his death. In the end, Jack is a fugitive from the US and Chinese governments.