Danny and Jamie clash over a gang-related shooting; Erin and Anthony search for answers when a lawyer in their office jeopardises a case involving Erin's nephew; Frank grows concerned when he's not invited to speak at a policing forum.
McCord and her staff attempt to ease the opioid crisis by extraditing the head of a Mexican cartel to a US prison, but are forced to launch an urgent search when the cartel leader escapes.
McCord tries to persuade senators on a landmine treaty by hosting a holiday party, while Henry attempts to prove that the senate majority leader colluded with the Russians by exchanging information.
Vice President Hurst promises that Americans will be able to continue to adopt Russian orphans in an attempt to set Elizabeth up for failure; Henry and Elizabeth discover that Stevie is dating Dmitri.
