Gossip Girl - 4x20 - The Princesses And The Frog

Episode Summary : Blair's dreams appear to be coming true, but Serena threatens to jeopardize it all by dredging up Blair's past. Charlie befriends Vanessa, who may or may not have a hidden agenda. Nate is torn between his relationship with Raina and a truth he must keep hidden out of loyalty to Chuck.

[Runtime : ~42'] - [Orig. Air Date: 02 May 2011]

Gossip Girl - 4x19 - Petty In Pink

Episode Summary : Serena enlists Charlie to go undercover Gossip Girl-style to determine why Dan and Blair are spending so much time together, and what role an unexpected visitor is playing in their lives. With Nate's help, Raina decides to go on a search for her long-lost mother.

[Runtime : ~42'] - [Orig. Air Date: 25 Apr 2011]

Gossip Girl - 4x18 - The Kids Stay In The Picture

Episode Summary : As Lily awaits the consequences of her decision, William van der Woodsen, CeCe and Lily's sister, Carol, come into town to support her and be part of a Taschen photo shoot on "modern royalty" in which the Rhodes family is participating.

[Runtime : ~42'] - [Orig. Air Date: 18 Apr 2011]

Gossip Girl - 4x17 - Empire Of The Son

Episode Summary : Ben's mother comes to the city, forcing the issue between Ben and Serena. Meanwhile, Russell Thorpe tries to destroy Chuck's family legacy, but then he has to risk his daughter Raina, in the process. Also, William van der Woodsen returns to the Upper East Side.

[Runtime : ~42'] - [Orig. Air Date: 28 Feb 2011]

Gossip Girl - 4x16 - While You Weren't Sleeping

Episode Summary : It's Eric's 18th birthday and there is plenty of drama in the Upper East side. Blair decides to speed up her plans for her future as a powerful woman, but goes too far. Serena has to choose between her family and Ben. Chuck and Lily's relationship remains icy after Lily's betrayal.

[Runtime : ~42'] - [Orig. Air Date: 21 Feb 2011]

Gossip Girl - 4x15 - It-Girl Happened One Night

Episode Summary : With Russell Thorpe poised for a takeover attempt of Bass Industries, Chuck makes one last-ditch effort to save his family's company. Blair is given a challenging assignment at W Magazine with the promise of a possible promotion. Serena struggles with her feelings for Ben.

[Runtime : ~42'] - [Orig. Air Date: 14 Feb 2011]

Gossip Girl - 4x14 - Panic Roommate

Episode Summary : Blair enlists Nate's help to win over her high-strung boss, Epperly, at W Magazine. Damien stirs up more drama on the Upper East Side. Chuck finds himself torn between business and pleasure. Florence and the Machine performs an acoustic version of "Cosmic Love".

[Runtime : ~42'] - [Orig. Air Date: 07 Feb 2011]

Gossip Girl - 4x13 - Damien Darko

Episode Summary : Blair is ecstatic to land an internship at W Magazine, but the thrill quickly fades when she finds out that Dan has secured one of the coveted positions as well. Chuck may have finally met his match with Russell Thorpe and his daughter Raina back on the Upper East Side. Nate receives alarming news about his father's business prospects.

[Runtime : ~42'] - [Orig. Air Date: 31 Jan 2011]

Gossip Girl - 4x12 - The Kids Are Not Alright

Episode Summary : A former associate of Chuck's father, Russell Thorpe - along with his daughter Raina - returns to Manhattan with some unfinished business for our Upper East Siders. Serena and Chuck join forces against Lily. Blair realizes that her mother, Eleanor, may be her key to becoming a future CEO. Nate worries that his father, The Captain, is having a little too much fun and not taking his parole seriously.

[Runtime : ~42'] - [Orig. Air Date: 24 Jan 2011]

Gossip Girl - 4x11 - The Townie

Episode Summary : Blair and Dan join forces to find Juliet. Meanwhile Chuck suspects Lily has not tell him the full truth.

[Runtime : ~42'] - [Orig. Air Date: 06 Dec 2010]

Gossip Girl - 4x10 - Gaslit

Episode Summary : Chuck, Blair and the Humfrey family find themselves in a crisis when a family member is hospitalized. Meanwhile, Nate attempts to get his parents back together. [source: tv.com]

[Runtime : 41:40] - [Orig. Air Date: 29 Nov 2010]