Somewhere deep underground, Stephanie's team suddenly becomes face-to-face with the monsters that have attacked multiple times on the Earth's surface. But now her team is in their territory and extremely outnumbered. As the crew barely keep themselves from being torn apart by the creatures, it seems as if they are being led further into the unknown abyss. And for those who survive the journey, a shocking surprise will be waiting for them at the end....

Alone inside the White House, President McDearmon and Special Agent Barto receive unwanted visitors. While Barto defends the Executive Mansion from dangerous intruders, civil unrest erupts across the nation, manifesting itself with blood and violence in the streets of Macon, Georgia. Regardless of the outcomes, this nation will never be the same.

Just after being sworn in as President of the United States, Meredith McDearmon discovers a plot to execute the Electoral College. Special Agent Barto and her race to save one of the members before The Masses get to him first. In the meantime, everyday American citizens are beginning to take matters into their own hands.

Shortly after arriving at The White House, Special Agent Barto must interrogate the rest of the Secret Service to determine who they can and cannot trust. At the same time, tensions on American streets are boiling over, as everyday citizens blame each other for the turmoil that the nation is currently faced with. During all this, The Masses are plotting their next attack while the mystery leader pays a visit to a former president.

When the US President is assassinated by one of his own security detail, a female Secret Service agent named Bree Barto must protect the Vice President at all costs from a mass conspiracy by a group calling themselves 'The Masses'. With nowhere to turn and no one to trust, these two women with completely opposing political views and beliefs must work together to preserve what's left of American democracy.