In the fifth-season finale, Blair makes a choice between Chuck and Dan. Meanwhile, Lily comes to a decision about her marriage; and Nate suggests that he and Lola move in together.

A busy Blair asks Serena to impersonate her at a meeting. Elsewhere, Ivy and Lola join forces to help Chuck exact revenge; and Nate makes a choice regarding his future.

Diana and Jack may be harboring another secret, and Chuck and his pals want to unearth the details. Meanwhile, Dan gets the opportunity to spend the summer in Rome on a fellowship

Blair plots to ensure her social status remains intact, while Lily tries to solidify her family by hosting a gathering for them. Elsewhere, Nate looks into Diana’s background and unearths a surprise.

Blair and Dan go public as a couple by hosting a salon. Meanwhile, Lola gets to audition for a coveted role; Lily and Rufus clash over how to deal with Ivy; and Serena and Diana have a confrontation about secrets they don’t want divulged

Serena wants to pass her It-Girl torch to a hesitant Lola, whom she pressures to do a modeling gig at a lingerie show. Elsewhere, Chuck seeks Blair’s guidance regarding his past; and Diana resurfaces and stirs things up at Nate’s newspaper.

Chuck wants to express his gratitude to Jack for saving his life. Elsewhere, Blair and Dan’s new romance hits a snag; Ivy gets unexpected assistance from William; and Nate is optimistic about landing a new investor for his newspaper

Blair believes there’s a possible loophole in her prenup. Meanwhile, Chuck conspires with Georgina on a scheme; and William returns to support his family in a crisis

Dan discovers that a comedy group is performing excerpts from his book. Elsewhere, Blair attempts to salvage her friendship with Serena; and Ivy runs into the van der Woodsens as she heads out of town.

Nate hosts a Valentine’s Day party, which Georgina crashes. Meanwhile, Blair tries her hand at matchmaking; and Serena is startled by something she observes

Blair wrestles with making a challenging decision about her future. Meanwhile, Georgina tracks a scandal; and Serena protects someone by accepting blame.

Chuck struggles to accept Blair’s pending nuptials to Louis, and Georgina returns to town in time to cause havoc for the bride-to-be.

Blair has a bachelorette party; Nate teams up with someone unexpected to gain more info about Blair and Chuck’s car wreck; and Serena and Dan put on a charade of reigniting their relationship.

Blair’s flashbacks reveal the fallout of her and Chuck’s car accident, which Nate realizes may have been caused by foul play. Meanwhile, Lily gets a private eye to locate Charlie; and Vera Wang makes an appearance at Blair’s bridal-dress fitting.

Lily hosts a bash so Charlie can make her formal debut in New York society, but Max puts Charlie’s upper-crust future in jeopardy. Elsewhere, Dan considers admitting his true feelings to Blair.

CeCe’s family gathers for a Studio 54 party thrown in her honor. Elsewhere, Nate takes on bigger responsibilities at the Spectator, where his first lead story hits too close to home; and Blair seeks assistance from someone unexpected

Serena plans a wedding shower for Blair, complete with misleading info to keep Blair in the dark. Meanwhile, Chuck and Dan bond over not being on the shower guest list. and Nate and Serena are torn about giving Diana ammunition against Gossip Girl.

Several of the gang attend a production of “Sleep No More,” an off-Broadway theater experience in which audience members wear masks. Meanwhile, Diana wants to use Serena to take down Gossip Girl. and Dan makes the rounds on his book tour.

Blair has potential bridesmaids audition for the honor of being in her royal wedding. Meanwhile, Nate tries to make Diana jealous by getting close to Charlie. and Serena needs to secure the film rights to Dan’s novel, despite being angry at him.

Discord erupts in Louis’ family in the midst of a Yom Kippur celebration. Meanwhile, Serena’s friendship with Dan may become a casualty of her new job. and Diana wants Nate to be her hero when problems arise with the launch of her new publication.

Dan comes clean about his book to his friends and family. Meanwhile, problems arise for Blair after Louis reads Dan’s book. and Diana uncovers some damaging info about one of Nate’s pals and finds a way to benefit from it.

Nate must decide whether to cross moral lines at Diana’s request. Dan has figured out who is publishing his book, and seeks help to stop it, but he ends up in the spotlight anyway. Chuck helps Dan come to terms with his fate, just as Dan continues to try to help Chuck break through his [...]