Three months later, Star returns home from touring, and Alex and Simone's fates are finally answered. Carlotta and Cassie's sibling rivalry continues, as the two grapple with the aftermath of Cassie's big mistake, and Christine is caught in the middle. When Carlotta's back is against the wall, Midtown Sound's strength and future is tested by Mateo Ferrera, and Star's big announcement leaves a lot of questions unanswered.

When Mateo pulls a shocking stunt to reveal Star's pregnancy, the social media trolls go wild. Meanwhile, Simone faces a choice between her marriage and career, Carlotta and Cassie continue to battle it out and Maurice and Cassie team up for an unlikely ploy. Then, Derek returns home to find Miss Ruby in trouble.

In an attempt to "go legit," Cassie embarks on a new venture with a businessman, that interferes with Carlotta's work. Meanwhile, Noah struggles with making a contract decision under the watch of his father, Bobby, who is now back in his life. Then, still struggling with the death of a super-fan's sister, Alex helps the fan start a music career. Also, a shocking discovery causes Star to take family a little more seriously, Simone finds out a secret about Mateo she can't keep to herself and Andy is back in trouble.

Still stressed and grieving, Carlotta lands celebrity host Ryan J to host Gravity Media's Snowball event, but it doesn't come easy. Meanwhile, Star finds out that Maurice stole from her, and Derek becomes skeptical about Alex's super-fan-turned-bestie, Olivia. Then, Simone is asked to speak at the Orange Ball; Cassie does business with her ex, Xander; Maurice gets a blast from the past; and someone's fate is revealed.

Carlotta goes missing, suspicions about Olivia rise as she continues to pursue a friendship with Alex to cope with the loss of her sister. Maurice and Mateo settle on an agreement that tests Noah's loyalty. Miss Bruce and Bobby connect over their similar pasts and Noah, Simone, and Star try to keep Carlotta's Music Festival afloat in her absence.

In an effort to boost ticket sales, Mateo brings on controversial rapper Lil Dini, who clashes with Take 3. Star and Noah confide in each other about their relationship issues and Simone is put in a sticky situation when Jackson is cast as her co-star in a movie. Meanwhile, Derek's keeping a secret, Cotton's suspicions about Cassie grow and Xander pushes Cassie to find the rat in her organization.

Carlotta returns to Gravity Records, but finds out a lot has changed. Star meets Jackson's mother, Becky, and makes a shocking discovery. Meanwhile, Simone asks Nina for help when Angel returns in an unlikely way; Alex, still reeling from her fight with Derek, struggles with writing her own music; and Noah becomes dangerously paranoid and enlists his father, Bobby, as his new manager. Then, Cassie and Carlotta take steps towards making amends and Carlotta finds healing in confronting her father, Calvin.