Brianna and Haley plan a Y2K-themed birthday bash, but Summer and Marissa, a rival power couple, might crash the party; Cuppie is back in town and flirting up a storm with Shiva, who wants to take their relationship to the next level.
The fallout from the Y2K party reveals hidden rivalries within the Baes; Olivia's hard partying ways catch up to her, forcing Mel to come to her rescue; Marissa and Summer's house is under construction and they move in with Marissa's parents.
The rivalry between Brianna and Haley and Summer and Marissa carries over to a group softball game and puts the rest of the Baes on edge; Jordan looks to Shiva for support as she struggles with how to come out to her grandparents.
A night out turns wild after Summer confronts Haley with some shocking information about Brianna; Nelly looks to find closure with her family, who struggled with her coming out; Marissa's mom starts making things uncomfortable for Marissa and Summer.
Summer and Marissa's rivalry with Brianna and Haley sends the friend group into turmoil; Cuppie tries to get her anxiety under control and looks to confront Haley; Shiva is crushing on new friend, but is getting mixed signals.
Sick of the fighting between Summer and Marissa and Brianna and Haley, Mel bonds with Cuppie and plans a fun day out that doesn't include the power couples; Marissa and Summer shorten the timeline on moving into their remodeled house.
Ali Myers
Self
Nelly Ramirez
Shiva Pishad
Jordan Whitley
Marissa Gialousis