At Avery's apartment, she watches Austin flirt with Summer and asks what's going on. Leslie arrives. Summer tells Austin that Leslie helped Ian get out. He makes a nasty remark about lawyers and argues with Avery and Leslie about law versus justice. Summer says Austin's right. Avery takes her aside to issue a warning. Summer hisses that she's not her mom. Austin and Summer leave. Avery is distracted as Leslie talks about a case - she's upset about Summer. Leslie notes Austin has a mouth on him. Avery thinks she snapped at Summer because she's uptight about the disturbing messages on her website. Leslie learns Dylan thinks Ian is behind the messages and that he went to Idaho to see Ian's ex-wife. Leslie leaves and Avery gets another message. "4MJ. Who are you?"
At Sharon's place, Nick tells her he wants to come with her to Portland. Sharon nixes the idea. Nick says he's going to the gym. Sharon insists something good will come of her trip. After, Sharon's therapist arrives and they discuss her newly-returned memories. Sharon admits she's scared of what she's going to find when everything sorts itself out. She shares that she got her traffic ticket the same night Phyllis fell down the stairs and went in a coma. Suddenly, Sharon looks like she's remembering, but nothing comes. They talk about Mariah. Sharon says she reminds her of herself and her own childhood. The therapist urges her to be cautious.
At the Chancellor Estate, Colin tells Cane he believed Bonaventure was a solid acquisition. Cane tells him he's the only thing standing between Victor and a federal indictment. Colin is absolutely stunned to hear that Cane didn't tell Victor about his role in it. Cane warns him not to make him regret it. Later, Colin tells Jill he needs to earn Cane's trust. She says hers too. They spar verbally about the necklace until the doorbell rings - it's an appraiser. Jill carefully hands the necklace over. Colin asks about its value. Jill exclaims when the answer is 18 million dollars. Jill marvels about Katherine wearing the outrageously expensive bauble, full of admiration. Colin muses it will be a shame to sell it. Jill informs him that's not happening and warns him not to get any ideas. Colin thinks Katherine would have supported her helping him out. Jill laughs. She won't part with it, but tells him they'll find another way to solve his issues. She makes him sign a paper that the necklace can't be sold unless they both agree. After, Colin phones someone to come over and steal the necklace.
Lily finds Tyler drinking at the Club bar. He tells her he blew it with Abby. Lily muses about him running after his ex and how Mariah has always meant a lot to him - he even used to say how they had similar qualities that attracted him to her. She thinks he feels more for Mariah than he realizes. Tyler says he couldn't leave Mariah in the lurch; it's not him. He complains about Nick telling Abby to dump him. Lily urges him to fight for Abby. Cane appears and wishes Lily a happy birthday. Tyler heads to the gym. Cane says he has a surprise. Lily gets paged to the fourth floor. In the gym, Tyler confronts Nick about his advice to Abby. Nick won't apologize for trying to protect her. They bicker about why Mariah was in town. Nick wants Tyler to tell him what Mariah is capable of, but Tyler insists she's not evil, just a scared girl. Nick wonders if he's still in love with her. Tyler says he helped Mariah because she's alone in the world, but he's committed to Abby. Nick goes and Tyler gets a text from Mariah wanting him. In the dining room, Lily is back from the fourth floor and has the first clue in the scavenger hunt Cane planned. Soon she's collected more clues and Cane helps her put them together to make an Eiffel Tower. He admits they're not going to Paris, but gives her earrings from her favorite French designer to wear to bed tonight.
At Austin's place, he offers Summer a beer and then asks her age. She worries he thinks she's a child. He assures her he doesn't think that at all. Summer admits she's been acting immature about Jack and Kelly. She decides to prove she's not a child anymore and asks Austin to make love to her. On his nearby computer screen is a post by 4MJ.
Nick returns to Sharon's place and shares what Tyler told him about Mariah being needy. He's worried Sharon will open a door that will lead to more heartache. Sharon's car arrives and she leaves, promising to be strong.
Genoa City Spoilers for Tomorrow on The Young and the Restless:
Victoria asks what Stitch has to tell her.
Billy wants Chelsea's help finding information on Stitch.