Thursday on "The Young and the Restless," Marco told Jack that Victor is the bad guy and not him. He also talked about sleeping with Phyllis, and an enraged Jack smashed a bottle on the mantle and held it over Marco. 

Marco yelled at him to hit him, but Jack put down the bottle and said that he wouldn't sink to his level — he's not a criminal. After Jack left, Marco told Marisa to untie him. He told her that if she didn't do what he says, she'd never see Noah again.

At Crimson Lights, Noah told Mariah and Kevin that Marisa never showed up at the supplier. Summer said that she remembered Harding being at the cabin the night of the murder. She remembered hearing his ringtone when she regained consciousness, and she said Harding looked at her and ran away. Noah wanted to find Harding, but Kevin and Mariah stopped him, saying that they need more evidence.

At Newman-Abbott, Jack pretended to be Marco, but Victor saw right through him and said that it was a nice try, while adding that Marco came to Genoa City on his own. Jack said that he must prove that his alliance with Marco is over.

While on a hike with Hilary, Neil said that Devon cheated on her at the bachelor party. At the suite, Devon left a message for Hilary telling her that he's feeling better and that he's on his way to join her.

Back on the trail, Hilary told Neil that Nikki warned her that he might do something like this. As proof, Neil showed her the video. Hilary grabbed the phone and threw it away, telling him to go. She said that it's fake, but Neil insisted that it's proof that Devon cheated.

Here's what to expect on "The Young and the Restless" on Friday, Aug. 21: A deadly showdown occurs; Sharon decides to confront Summer and Mariah; Phyllis determines to seek revenge.

"The Young and the Restless" airs from Monday to Friday at 12:30 p.m. on CBS.