The Russians mistrust Renee, U.S.-Kamistan negotiations hit a snag, and the past of CTU analyst Dana Walsh becomes her nightmare.

Mitchell plants the seed in Jay’s head that he thinks one of Jay’s old buddies might be secretly gay. Jay doesn’t believe it for a second… except for all the questionable signs he now keeps noticing. Meanwhile Gloria gives Manny’s date a makeover and Claire faces off with Phil’s universal remote.

Neal must infiltrate a company of corrupt Wall Street brokers to preserve his deal with the FBI. When Peter is forced to go undercover alongside him, a discovery is made that could change their partnership forever.

CTU wants ex-FBI agent, Renee Walker, to infiltrate a Russian gang which is selling weapons-grade enriched uranium to the assassination plotters.

CTU detains a reporter it suspects of helping assassins, while Jack and Chloe start their own investigation.

While Jeff takes on the role of Greendale Gazette Journal’s editor, the gang must decide whether or not to admit an eager classmate into their study group.

When Claire finds a dirty picture on the computer and assumes it’s Luke’s doing, a guilty Phil doesn’t necessarily correct her. Jay and Gloria disagree over his beloved life-sized dog butler statue, and Cameron gets sucked into their gardener’s woes.

Alicia and the kids have to deal with some really bad news and then she has to give Peter some information that will make him furious. Alicia has to represent the doctor who prescribed the medication to a high school quarterback that appear to die from the painkiller overdose.

H.R.G. recruits Matt to help him take down Samuel, as they use his long-lost love, Vanessa, to lure him to them, but Samuel has his own plans for Vanessa in the works. Meanwhile, Hiro and Ando go to extreme lengths to save Dr. Suresh. Elsewhere, Peter’s introduction of Emma to his mother brings forth visions of a very grim future.

Topher races to reconstruct Echo’s original personality and memories when Adelle realizes they are the key to averting a devastating future. Meanwhile, Echo and Bennett’s shared past and the identity of The Rossum Corporation’s mysterious leader are revealed.