CBS has greenlighted an untitled CIA drama project from Nikki Toscano of “Revenge” and Kerry Ehrin of “Bates Motel,” The Hollywood Reporter’s Live Feed reports.

CBS ordered a pilot for the project, which is about a retired CIA operative who returns to work after Washington, D.C., is hit by a terrorist event. Toscano will write the script and executive produce, while Ehrin will serve as a consultant.

The project marks the fourth drama pilot order for CBS this season.

“Terrorism-themed series have continued to remain hot since Showtime’s ‘Homeland’ broke through,” the piece notes.