'The Young and the Restless' spoilers for Dec. 21-22: Mariah confronts Abby

"The Young and the Restless" cast, such as Camryn Grimes (Mariah), Melissa Ordway (Abby), Thad Luckinbill (JT), Joshua Morrow (Nick), Melissa Claire Egan (Chelsea), Eileen Davidson (Ashley), Peter Bergman (Jack), Daniel Goddard (Cane), Christel Khalil (Lily), Melody Thomas Scott (Nikki), Doug Davidson (Paul), Lauralee Bell (Christine) and Gina Tognoni (Phyllis), will be in the spotlight for the episodes of Y&R on Thursday and Friday. It will show Abby's confrontation scene with Mariah as well as Jack giving Ashley an unforgettable Christmas gift.

Spoiler alert! This article contains more 'Young and Restless' spoilers 2017. Read on to learn about what will happen in the upcoming episodes of the long-running CBS soap opera.

Soaps.sheknows reports that on Thursday, Abby will be confronted by Mariah. Meanwhile, JT will reveal that he split up with Mac (Clementine Ford). As for Nick and Chelsea, they will get in the holiday mood and prepare to be festive. Nick will also be surprised by Chelsea. Elsewhere, Abby will flip out. Plus, JT will be extra charming. Victor (Eric Braeden) and Nikki's kids will also react to their parents' reconciliation.

Mariah's confrontation with Abby

On Friday, Abby will be confronted by Mariah and Ashley will get a Christmas gift from Jack that will be quite memorable. Elsewhere, Cane and Lily will be trapped. Meanwhile, Nikki will wonder if Christine and Paul will be nice or naughty. Plus, Phyllis will be added by Jack as a board member of Jabot. Also, a board member outside of Genoa City will cast a vote that will shake things up at the company.

'The Young and the Restless' recap of past episodes

On Monday, Jill (Jess Walton) returned to Genoa City to celebrate the holidays. She revealed that she's going to sell Chancellor Industries. Jill also reconnected with Cane and Billy (Jason Thompson). Meanwhile, Nikki warned Kevin (Greg Rikaart) that he must leave town as soon as possible. Plus, JT made an unexpected move. Tuesday's episode of Y&R featured Ashley and Jack battling it out in the boardroom of Jabot. Unfortunately, Jack got voted out at Jabot. Meanwhile, Nikki and Victor made a deal and Lauren (Tracey E. Bregman) looked after her own interests.

Wednesday's episode showed Billy and Phyllis talking about their relationship. Plus, Cane received some encouraging news. As for Hilary (Mishael Morgan), somebody questioned her true intentions. Click here to see photos of some of the scenes mentioned from the CBS website.

"The Young and the Restless" episodes air on Foxtel Arena in Australia during weekdays. It also airs on weekdays in the US on the CBS network.