American Odyssey will not be returning to NBC for a second season.

The international conspiracy thriller has been cancelled after the first season. Star Treat Williams revealed the news in a tweet that read, “American Odyssey has been a great experience. Thank you Peter, Adam, Kay,and a lovely cast for a great season. Thank you NBC for the gig.”

Co-creator Peter Horton also took to Twitter with the news and wrote, “As you all know we have bn canceled. Had we been on cable wld have bn a hit Thx to all of u for bing our audience #thebest #AmericanOdyssey”

The show was frequently described as the broadcast version of Homeland. It followed an American female Special Forces soldier, played by Anna Friel (Pushing Daises), who discovers computer files that point to a corporation funding terrorism in North Africa. Before she can do anything with this information, her unit is killed and she is the only remaining survivor and witness.

Also pulled into the conspiracy are a disillusioned corporate attorney, played by Peter Facinelli (Nurse Jackie), and a disgraced political activist, played by Jake Robinson (The Carrie Diaries). Williams plays a military official who is partly responsible for the conspiracy and cover-up, according to Variety. 

The show struggled with ratings and critical reviews. It premiered with a 1.1 rating among adults 18-49. After that it continued to drop, averaging 0.9 throughout its run. The finale on June 28 only got a 0.4 rating, according to The Hollywood Reporter. 

The Universal Television produced project hailed from The Following‘s Adam Armus and Nora Kay Foster, who executive produced alongside Henrik Bastin, Mikkel Bondesen, Kristen Campo, Simon Maxwell, David Waco and Peter Horton, who also directed the pilot.