U.S. Marshall Mary Shannon is about to protect her last witness.

Shortly after picking up freshman series "Suits" for a second season, USA announced that the fifth season will also be the final one for "In Plain Sight."

As first reported by Variety, the network committed to eight more episodes of the Mary McCormack-starring drama, with Sherlock Holmes Season 1 dvd boxset USA co-president Jeff Wachtel saying, "We've built a contract with the audience and want to give them a sense of closure."

Premiering in 2008, "In Plain Sight" has enjoyed healthy ratings during its four-season run on the network. Its recent season finale, which aired Sunday (Aug. 7), brought in 4.9 million viewers overall, a 6-percent gain from 2010.