Mariah is out of touch; Michael grills Chloe; and Rey talks Adam into a reunion.

Victor makes Victoria a surprising offer; Kevin is suspicious of Adam's reform; and Jack engages in a power struggle with Ashland.

Victor agrees to use his resources to help find Mariah; Devon asks Denise Tolliver for a favor; and Kevin and Chloe give Sally a warning.

Nikki and Victor share a difference of opinion; Sally spies on Phyllis and Jack.

Devon shares his suspicions with Victor; Sharon wants justice for Mariah; and Rey and Kevin connect the dots.

Billy and Lily defend their actions to Victoria, Adam and Sally make a bold move, and Jack takes the high road.

Nikki tries to repair the rift between Victor and Nick; Lily and Billy leave enemy territory; and Lauren backs Chloe into a corner.

Billy and Lily enlist Victoria's help; Rey commiserates with Kevin; and Christine and Ashley keep a secret from Abby.

Chelsea makes a confession to Adam; Elena looks forward to a fresh s tart; and Kevin and Chloe make a New Year's resolution.

Michael reflects on his life and career as Christian LeBlanc celebrates 30 years on The Young and the Restless.

Victor keeps Lauren in the dark; Kevin understands the assignment; and Nikki points Victoria in the right direction.

Victor receives a surprise visitor; Lauren loses patience; and Victoria takes matters into her own hands.

Family and friends gather to attend Mariah and Tessa's wedding.

Family and friends gather to attend Mariah and Tessa's wedding.

Tessa and Mariah celebrate their love and a surprise guest crashes the wedding festivities.

Victor puts Adam on notice; Noah and Allie debate family matters; and Chance and Kevin uncover disturbing evidence.

Victor gives Nick an ultimatum; Diane opens up to Jack; and Ashley second guesses her alliance with Nikki and Phyllis.

Nick shares a secret with Sharon; Billy comforts Victoria; and Abby catches Chance in a compromising position.

Lily starts doubting Billy's commitment; Chelsea and Victoria look back to their past; and Abby catches Chance in a compromising position.

Victor calls Chance's bluff; Nikki questions Victoria's state of mind; and Lily forces Billy to make a decision about his future.

Victor defends his actions; Adam gets the upper hand against Kevin; and Nick relishes his new role.

Phyllis closes a power deal; Kyle protects Jack's interests; and Chelsea makes a bold move.