Ramon De Ocampo

27 years after a virus wipes out most of humanity, scientists send a man (James Cole) back to 2015 to stop the plague from ever happening. Cole's only lead is a virologist (Dr. Cassandra Railly), who knows the dangerous source of the outbreak.

A man motivated by religious convictions is the prime suspect in a double homicide.

Josh is surprised when political commentators are critical of Leo as a vice presidential candidate.

President Bartlet and his current and former staffers come together for Leo's funeral.

As a Grand Jury convenes to investigate the military-shuttle leak by the White House, the campaign's focus changes to national security.

The president-elect places a call to the president of China and offers a different position from the one Bartlet currently espouses.