Ray Donovan Season 4 Episode 11 : Chinese Algebra

Ray's latest attempt to save Avi and square his debts to the mob takes a hit when FBI agent Frank Barnes nabs him before he can pull it off, so Ray must send Mickey to Las Vegas to place a hefty bet on the boxing bout between Hector and Whittaker. Later, in exchange for Federal protection, Barnes offers Ray a chance to turn informant against Dmitri.