The Covert-One series is a sequence of thriller novels written by several authors after the death of Robert Ludlum, presumably according to some of his ideas.
The books feature a team of political and technical experts, belonging to a top-secret U.S. agency called Covert-One, who fight corruption, conspiracy, and bioweaponry at the highest levels of society.
In April 2006, CBS aired a miniseries based on The Hades Factor.
The miniseries was directed by British director Mick Jackson.
On May 16, 2016, Universal Studios and Captivate Entertainment announced that a film adaptation will be part of a cinematic universe of Robert Ludlum adaptations including The Janson Directive, The Sigma Protocol, The Parsifal Mosaic, and others.