Last week on "The Young and the Restless," Adam told Jack, Victor and Chelsea that the kidnapper was a woman. Meanwhile, Phyllis told Natalie that she is the other investor and that she wants Natalie to take Victor's money and give him a fake program. Phyllis said that she will take the real Internet security program and say that her own team developed it. Later, Phyllis went to the hospital to visit Billy and to tell him that the hacker is on their side now and that this time, they're going to win.

At the Jabot lab, Ashley told Neville about Billy and she marveled at the speed of his recovery. She told Neville that if the treatment doesn't work for her, he should end her life so that her loved ones won't fight about letting her go or keeping her alive. Neville told her not to think about it as he's focused on saving her life.

Nick and Sage continued their plan to know what Dr. Anderson is up to. The doctor told Nick that Sage should be admitted to the hospital, and Nick did so, while acting as if he was interested in the doctor. Later at Sage's hospital room, Nick told her that he's worried that they might be going too far but Sage reassured him and said that everything will be alright.

This week, Billy makes a decision about going back to work while Phyllis plots to take Victor down. Jack turns to Adam for help and Adam works to trap Luca. Meanwhile, Dr. Anderson surprises Nick and Sage gets caught.

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

Feb. 1 (Monday): Billy makes a decision while Jack asks Adam for help.

Feb. 2 (Tuesday): Jill tries to bring Cane and Lily back together while Dr. Anderson surprises Nick.

Feb. 3 (Wednesday): Adam works to trap Luca while Sage gets caught.

Feb. 4 (Thursday): Billy keeps a secret while Chelsea forces Adam to make a decision.

Feb. 5 (Friday): Luca plans to take Victor down.

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