Mako Tanida escapes a Japanese prison and kills an FBI agent, claiming revenge for "collateral damage" caused by the FBI when they were after Red. After another FBI agent turns up dead in America, Ressler fears he may be next, as he was part of the team searching for Red back then. He grabs Audrey and attempts to take her somewhere safe, but his car is rammed by Mako's driver. In the ensuing melee, Mako shoots and kills Audrey. Ressler vows to take out Mako, despite warnings from Cooper and Red to let other agents take it from here. Collaborating with an old FBI buddy named Bobby Jonica, Ressler tracks down Mako, but later learns that Bobby is the mysterious "Aiko" -- the man who took over Mako's crime operation while the latter was in prison. Just then, Liz shows up and Ressler resists killing his old buddy, though Bobby commits suicide anyway, while Ressler later receives Tanida's decapitated head from Reddington. Meanwhile, Lucy/Jolene announces plans to move in next to Tom and Liz, but Tom later meets Lucy in a hideout and the two converse about mutual though possibly conflicting plans to get to Red. Tom assures Lucy he has done everything he could to maintain the ruse of his devotion to Liz, but complications arose when he was knifed by the men sent for Red, causing Liz to find his fake passports and cash. Later, the man named "Cowboy", a bounty hunter hired by Red, tracks down Tom and Lucy, but he is captured and killed by Tom, moments after Tom had also killed Lucy.