"King & Maxwell" starred Jon Tenney ("The Closer") and Rebecca Romijn as Washington, D.C.–based former Secret Service agents solving crimes as private detectives.
The show debuted in June to 3.52 million viewers and a 0.6 adults 18-49 rating, and concluded its run in August with similar numbers. However, the series lost a third of its "Major Crimes" lead-in, which may have helped seal its fate.
The news comes days after it was reported that Tenney will return to "Closer" spin-off "Major Crimes" to direct one episode and guest star in another, reprising his role as Fritz Howard in a December episode.
The majority of TNT's other shows have been renewed for new seasons, including "Falling Skies," "Major Crimes," "Perception" and "Rizzoli & Isles." "Franklin & Bash" is the only one that remains on the bubble.
The network recently picked up Steven Bochco's Taye Diggs-led "Murder in the First" to series, slotting it for summer 2014 and likely replacing "King." Other upcoming new dramas include Frank Darabont's "Mob City," which debuts in December, and the 2014 premieres of Michael Bay's "The Last Ship" and Howard Gordon's "Legends."
"King & Maxwell," executive produced by Shane Brennan ("NCIS"), was based on a series of novels by David Baldacci.