'Dark Blue' preview

TNT summer lineup gets darker with 'Dark Blue'

"Dark Blue" uncovers the exploits of a team of undercover police officers as they immerse themselves in the gritty criminal underworld of Los Angeles. With each dangerous assignment, they must toe the line between their true allegiances and the requirements of their job in order to expose criminals that otherwise escape unnoticed.

"Dark Blue" premieres Wednesday, July 15, at 10 p.m. ET/PT on TNT.