With an evenly-divided United States Senate, the stakes are high for the nation's political power brokers. The leader of one party decides to change the numbers by arranging the elimination of one of the other party's senators.

As the senator's death sends shock waves through the nation's capital, federal prosecutor Jeff Trask and a team of FBI agents and police officers must solve not only the senator's homicide, but the murder of one witness and the attempted murder of another.