'The Young and the Restless' Spoilers: Nick and Sharon Frantically Search for Mariah and Nikki Goes Over the Edge!

Nick (Joshua Morrow) and Sharon (Sharon Case) demand that Ian (Ray Wise) tell them where he has taken their daughter Mariah (Camryn Grimes), on The Young and The Restless during the week of August 25-29, 2014. Meanwhile, Nikki (Melody Thomas Scott) turns back to the bottle! Nikki asks Victor (Eric Braeden),"How much more can a woman take without breaking into a million pieces and never being whole again?" Watch a preview in the latest promo for Y&R below: