Spoilers courtesy of SpoilerFix.com:

Lauren brings Kate up on malpractice charges based on allegations she engaged in an inappropriate relationship with Adam during the trial. Kate is defending Stu Scott, whose wife is accusing of sleeping around and rendering their pre-nuptial agreement null and void. Kate's dad Jerry begins courting a spoiled friend of Kate. Can you guess whom?

Courtesy of SpoilerFix.com

Kate attends a high school reunion where she meets Tamara an old classmate who is getting married next year to Henri, a man she fell in love with while in France. We learn that Kate is now single. She notices Dave Hillman, the guy she had a big crush on in high school. Nick also attends the reunion. Jerry and Serena are still seeing each other but Jerry is starting to feel old around her. Tamara asks Kate if she knows of a good immigration lawyer for Henri. Kate wants Tamara to sign a prenup. At the firm, Kate meets with both of them to set up the prenup but Henri is there only because Tamara wants the prenup not because he wants to… will this lead to the end of their couple? Lianne goes on a date with 30-year-old Jew named Josh. Kate and Jerry help Josh with the settle agreement he has with his ex about cooking kosher food for their children. Kate and Dave will go to dinner and in a bar. Kate has Jerry, Serena, Dave, Josh, and Lianne over for dinner. Kate su

Charisma Carpenter guest stars as Serena Lockner, a former high school classmate of Kate's who comes to her looking for relationship advice. Kate is hesitant to help her at first because of their history together, but in the end acquiesces after Serena convinces her that she is a changed person, genuinely interested in finding the right person. After one botched attempt and a bit of coaching, Kate sets Serena up with Michael and they, to Kate's surprise they seem to be hitting it off, that is until Kate and her chiropractor friend Dean go out with them on a double date and Serena's true colors are revealed.

In the midst of all this, Kate is also embroiled in a nasty divorce proceeding involving a businessman whose wife is claiming that the pre-nuptial agreement they signed is void because he slept with the ^hot nanny.^ Although it seems at first like a pretty straightforward case, Nick charms some very valuable information out of the nanny, giving Kate and Jerry some inside information

Just when Kate thought that Serena Lockner was out of her life for good, she returns to ask Kate to represent her in adopting a baby. While Kate tries to convince Serena that babies are not the fashion accessories of the month, she is also distracted by Lauren's divorce. A complicated case since she and Michael have to hide their relationship or Kate will lose Lauren as a client. In the meantime, Victoria moonlights as an elf in Santa's workshop at the mall and gets some naughty attention from a flirty Santa.