Dani makes a discovery about The Orchestra and her symptoms; meanwhile Bo and Tate try to negotiate a truce with Roman. Bo finds out the truth about her mother's death. Dani makes plans of her own.moreless
Tate starts to warm up more to Bo as they continue on the run from the cops. We learn a little about Bo's mom, therefore how Bo inherited her growing powers and where her mother is now. Bo get's a special message leading her to reunite two loved ones and Winter Saves Bo and Tate from getting captured just in the nick of time!moreless
Caroline tries to get a promotion, but hiding her pregnancy is becoming more difficult. It is Halloween so Molly and Junior go to a party.
With a new RV the family plans to spend more time together as Molly gets closer to her mother. Miguel and Lisette discover something about one of Demetrio's teachers.
Dan wants to get in shape and looks for Miguel's help. Things turn weird when Molly and Junior are seen at the doctor's office by Caroline.
Dan and his wife Caroline are helping their daughter Molly leave for college. However, when Molly makes an unexpected announcement plans change. Having to adjust to a new reality, Family life for Dan and Caroline will change for ever.moreless
Vivian's case is reopened and the identity of her killer is revealed. Edward realizes everything that has happened but still has to deal with his wife's condition and those responsible for that.
Joanna discovers a set of shocking videos. Will fires Joanna and julian helps the FBI to get evidence against Audrey. Edward turns himself in and Wyatt is released from prison. Mia helps her biological father.moreless
Robert starts suspecting Joanna and her reasons for being at the family house and company. Mia decides whether to help Haverstock as Joanna investigates Julian's girlfriend. Sofia meets an old friend.
Edward goes pubblic with all he knows about his family's company, causing Bowers Parmaceutical a big PR blow. Havestock comes clean with Mia. Joanna tries to escape from a hit man.
As Julian is about to put Bowers Pharmaceutical's new drug in the market, Edward makes a shocking discovery. Haverstock tells Mia who he really is and Joanna goes on a dangerous chase.
Mia runs away after discovering who her biological parents really are. Will investigates Edward regarding Vivian's murder.
Mia's debutant ball turns ugly when everyone gets to know the truth about her biological mother. Julian wants to get a new cancer drug on the market and looks for help in an old friend. Joanna and Will focus on Vivian's murder.moreless
Joanna suspects Julian is hiding something. Mia introduces her new boyfriend while Senator Haverstock tells Edward strange things about his past.
Joanna spends more time with Julian and gets closer to Samantha. Edward is fired from Bowers' Pharmaceutical and Mia picks the wrong guy to hang out with.
Joanna, now working as Robert's secretary, continues to look into Viviana's death. The Bower family faces some problem regarding Lyritrol, Bowers Pharmaceutical's new cancer drug. Edward finds out that he is a suspect in Vivan's death.moreless
No one was surprised when the wealthy socialite and drug addict Vivian Bowers was found dead of an overdose, except for FBI agent Will Moreno. He is convinced that the death was a homicide, and that someone in Vivian's family did it. He gets help from Detective Joanna Locasto, who at one point had been Vivian's best friend. When Joanna attends the funeral, the family embraces her, offering her a place to stay. She then begins to undercover secrets about how Vivian died, putting herself in danger.moreless
Blair must make the big choice between Dan or Chuck; Lola reflects on Nate asking her to move in with him; Lily makes a final decision regarding her marriage.
Serena must be Blair's double when Blair finds herself needed in multiple places at once; Chuck enlists the help of both Ivy & Lola in order to carry out a revenge plot; Nate sorts out his future with Diana Payne.moreless
Diana and Jack have a deep dark secret; Chuck investigates to find out what is really going on; Dan gets an offer to study abroad in Rome.
Blair and Dan throw out a big party for them to come out as a couple, Gossip Girl may ruin Lola's biggest dream; Serena and Diana have a face-off.
Serena is determined to turn Lola into the next "it-girl" of the Upper West Side, starting with trying to persuade Lola to model at a Kiki de Montparnasse Lingerie show. Meanwhile, Chuck reached out to Blair for advice about his past. Diana Payne's return to The Spectator starts a power struggle with Nat for control, while Lola reacts with jealousy; but everything is not what it appears. It is discovered that Chuck paid Blair's dowry to get rid of Louis' family. Also, Rufus and Lily have a falling out after Lily goes behind Rufus' back to play a simply scheme to remove Ivy from their penthouse.moreless
Chuck thanks his uncle Jack for saving his life. Blair and Dan try to take their relationship to the next level. Lily has tries to adapt to living in Brooklyn while Ivy adapts to her new life on the Upper East Side. Serena takes on the role as Gossip Girl from the package Georgina left her.moreless
William van der Woodsen returns to the Upper East Side to deal with a family emergency, while Blair fears Cyrus has found a loophole somewhere in her prenup. Also, Georginia and Chuck band together with a mischievous plot, leading to an unpredictable finish.moreless
Famed improv troupe, The Upright Citizen's Brigade, selects excerpts from Dan's book to perform. Blair endeavors to save her friendship with Serena by trying to prove her suspicions aren't true.
"The Backup Dan" begins with Blair and Dan successfully fleeing all the way to the airport to make their escape from New York. Elsewhere on the Upper East Side, Georgia has discovered some scandalous gossip and her newly revealed nature means she will not be letting it get away from her.moreless
As Blair prepares to walk down the aisle, Chuck tries to come to grips with losing the love of his life. Michelle Trachtenberg returns as Georgina to cause trouble, plus other surprises in the 100th episode.moreless