Here are your Days of our Lives spoilers for Monday, September 15, 2025.
What to expect on Days of our Lives

Tate (Leo Howard) can still tell that Sophia (Rachel Boyd) is lying about something regarding their baby and seems to believe that if he is just kind to her, she will open up to him and tell the truth. However, when Holly (Ashley Puzemis) sees Tate take Sophia's hand, jealousy rears its ugly head.
Tate and Holly end up getting into quite an argument right in the middle of the school library. Is Tate putting on an act for both Sophia and Holly? If Sophia thinks that he and Holly are on the outs, Tate might get her to trust him more. Tate has no idea that Brady (Eric Martsolf) is very close to finding out a truth nobody expects, except maybe Sophia.
After the incident in the library, Sophia vents to Ari (Marissa Reyes). She might be choosing the wrong person to complain to if she has a gripe with Holly, since Holly is Ari's roommate. Ariana is certainly going to feel like she is being pulled in two directions by her old childhood friends.
A birthday party to remember

It's Victoria Kiriakis' second birthday, and her parents and other family members gather to celebrate the occasion in the Kiriakis living room. Xander (Paul Telfer) and Sarah (Linsey Godfrey) try to put their animosity toward one another aside and get along for one afternoon, which is easier than they thought it would be.
Sarah even sees Xander in a whole new light as she observes him getting along with Philip (John-Paul Lavoisier) and playing with their daughter. Sarah is surprised that Xander and Philip seem to be friends after all that has happened between them. When Sarah gets Philip alone, she questions him about the night he was attacked. Sarah tells him that she knows that Xander is the one who beat him, but Philip sticks to his story and insists it wasn't Xander.
Will Sarah get Philip to crack, or will she believe him? Either way, they all might want to get to the One Stormy Night press conference to do damage control for Alex (Robert Scott Wilson) and Stephanie (Abigail Klein). What could go wrong?
Catch all-new episodes of Days of our Lives weekdays on Peacock.