'The Young and the Restless' spoilers, plot news for June 1 to 5: Jack meets a mysterious stranger

Last week on "The Young and the Restless," Jack wakes up and finds himself on a ship at sea. Kelly welcomes him aboard, and Jack pales and stutters that she's dead. He tries to grab her but she vanishes. Someone comes in and he hides, but the man finds him and strikes him. When he regains consciousness, he offers the man a lot of money if he helps him return to the States. The man thinks that Jack is someone named Marco and he tells him that he wants his money back. 

Meanwhile at the lab, Ashley reprimands Yack about Gabe and Chelsea and tells him that she's tired of supporting him. Victor arrives, and Yack says that there's a reason for all of his actions, primarily because he has a bad feeling about Gabriel. Ashley leaves to find Chelsea, and Victor and Yack argue about the latter being at the intervention. Yack tells him that he knows about addiction because the woman he loved was an addict. 

Gabriel talks to Chelsea in the hallway and he asks her why she's been avoiding him. She says that she has been busy. He asks her to give him a chance to prove to her that Adam isn't the great love of her life. He tells her that she's the most beautiful woman he's ever seen and that they have an incredible connection. He promises to be there for her and Connor. 

Here are "The Young and the Restless" spoilers for June 1 to 5:

Monday, June 1: Jack meets a mysterious stranger, Marisa, who recognizes him as Marco; Sharon is forced to defend herself; Adam's behavior causes Chelsea to worry.

Tuesday, June 2: Victor struggles to keep his family together; Mariah makes a shocking revelation; Neil and Hilary clash.

Wednesday, June 3: Marco confronts Adam; Kevin finds himself in trouble with Paul; Billy and Victoria's alliance is questioned.

Thursday, June 4: Nick and Sage discuss their future; Kyle stops Summer from making a big mistake; Avery discovers important information about Joe.

Friday, June 5: Devon and Hilary advance their relationship; Nikki spends time with Neil.

"The Young and the Restless" airs Mondays to Fridays at 12:30 p.m. on CBS.