Lena wants Mariana’s quinceañera to be perfect, but Mariana uncovers a secret that may ruin her day. Meanwhile, Lena’s mom visits; and Stef reminds Brandon of the dating rules when she observes his and Talya’s friction over Callie.

Frank’s death brings up some painful memories for Callie and Jude. Meanwhile, Jesus and Emma’s relationship grows up, Stef knows about Lena’s secret, and Mike gets in trouble.

Brandon’s band go on a hike as they seek inspiration. Meanwhile, Callie worries about Jude and how her actions have affected him

Stef and Lena discuss their lack of romance. Meanwhile, Jesus and Lexi have unprotected sex and Brandon is jealous about Callie and Wyatt.

Brandon learns Mike has a new girlfriend, Dani, and Brandon goes to great lengths to pay Mike back for piano lessons.

A medical issue concerning Lena’s pregnancy arises. Meanwhile, Wyatt turns to Brandon for advice

Lena and Stef have a debating dinner with Jesus, Lexi’s parents, and Stef’s conservative father, Frank. Callie attends a therapy session for foster children.