Savi and Joss's free-spirited mom, Janet (guest star JoBeth Williams), pops in unexpectedly for a visit. She's shocked when Harry spills the news that he's moved out of the house. Joss is thrilled that her mom is in town. Savi, on the other hand, is more reserved in her reaction. She has a lot going on. She still hasn't opened the envelope with the results of the paternity test. Savi also has memories of a childhood where she was the one caring for Joss while her mom led a life of leisure.
There's still lots of tension between Savi and Joss, but they put aside their differences long enough to have lunch with mommy. Janet has to be reminded about the significance of the necklace her youngest daughter is wearing. It's the gift she got for Joss for her 7th birthday. Janet drops the bombshell that she's moving to Rio. Joss wants to throw her mom a going away party with a Brazilian theme. As for Savi, she's reluctant to open up about her life even though Janet promises she won't judge. How could she? After all, this is a woman who got pregnant with Joss by a man other than Savi's dad.
Richard has told his daughter about his new girlfriend but April has yet to dish to Lucy about her new boyfriend. That's an issue, but not for long. April finally does spill the beans to her daughter. She's trying to earn back some of Richard's trust. She even goes as far as wearing a jersey for his favorite team. Later, the two of them make their way over to the going away party with the kids. Also showing up at the bash is Diego, the hunky bartender Janet hired to sling drinks at the affair.
Joss invites herself to Rio to help her mom get set up. Janet says that she's thrilled that her daughter will be coming along for the journey, but the look on her face suggests otherwise. Later, Janet suggests that the reason Savi's marriage is in trouble is because Harry had an affair. Savi finally fesses up that she's the cheater. She also lets Janet know that she's the one who gave Joss that necklace. Savi used all of her savings to buy it because she knew her mom would forget while she was off gallivanting in the Caribbean. Unbeknownst to Savi, Joss overhears the entire brutal conversation.
The next morning, Janet her daughter know that she thinks she is a woman of great character who is facing a mistake. Later, Joss is anxiously waiting for her mom so they can head off to Rio. Unfortunately, Janet has decided that Diego the hot bartender would make for a better traveling companion. Joss is crushed. Fortunately, her big sister is there for her, just like she's always been. Now Savi needs Joss to do something for her. She wants her to hold onto the sealed paternity results for her. There's no good answer inside. There's no one she trusts to hold onto the envelope more than her little sis.
A distraught Karen lets her friends know that Elizabeth is hip to the affair she had with her dead hubby. But when exactly did she find out? What if Elizabeth lied about how Tom died? Could she have murdered him in cold blood because of Karen? April suggests hiring the P.I. she used to dig up dirt on Miranda. Her conversation with the Sam Spade wannabe is cut short when Paul pops by her place. He never went back to Florida. He wants to talk to April. The reason he's still in L.A. is because he wants to see Lucy. Needless to say, April is stunned. She also knows it's time to come clean to Richard.
There's new evidence in the Thomas Grey insurance case. Elizabeth Gray fumes at Dominic when he says that the new evidence suggests her husband was suicidal. She says that Karen's notes are inaccurate. One of the session dates listed is during a time when she and Tom were in Hawaii. She suggests that Karen is lying. Elizabeth is barely able to conceal a sinister little smirk when no one else is around. Later, Karen is served with court papers. She's being sued by Elizabeth Grey for the wrongful death of her husband, Thomas Grey.