Commander In Chief

Vice President Mackenzie Allen unites the nation in the wake of the president's death, quelling her critics, who wanted her to resign to allow the Speaker of the House to succeed to the office.

Nathan attempts to manipulate new President Mackenzie's first order of business, to pick a vice president.

Mackenzie faces her first national crisis when nine DEA agents are killed in Latin America; Nathan Templeton is offered potentially damaging information on Mackenzie's nominee for vice president.

Nathan Templeton plans to engineer a series of Cabinet resignations to overshadow Mackenzie's first official summit with the Russian president.

The attorney general opposes the president's response to news of explosives smuggled across the Canadian border, and Templeton publicly ridicules it.

While surveying hurricane damage in Florida, Mac learns of an emergency situation with an oil tanker off the coast, which could have devastating consequences.