S4, E12: In the season finale, just as Ray believes his deal with Hector will be his family's salvation, Sonia hands over incriminating evidence to Frank Barnes. Forced to wear a wire, Ray attempts to play the Russian Mob off the FBI but falls terribly short when he realizes the mob may know he's snitching. Meanwhile, Mickey moves to cash in on the big fight, which instead leads him to a discovery that could help Ray against both adversaries.