Brandon struggles with a major medical decision that could affect his musical dreams; Stef seeks answers from Mike; a stranger keeps an eye on Callie; Emma's independent spirit threatens Jesus.
Lena hopes to reconnect with Stef during a weekend getaway; Brandon and Callie fail in their attempts to keep order when a party erupts at the house; a game of spin the bottle puts Jude in an awkward spot.
Callie worries about how her actions have impacted Jude; Emma puts Jesus in an awkward position; Stef suspects that Mike was involved in Ana's disappearance; Brandon reveals past transgressions to an unexpected confidant.
Tragedy strikes the Fosters; Stef confronts Mike about Ana; Wyatt seeks relationship advice from Brandon; Mariana is angry with Jesus for involving her in his girl troubles.
Brandon reveals a big secret; Callie takes Jude to visit the Quinn family; Jesus feels pressured to prove his loyalty to Hayley; Mariana battles her insecurities as her dance team prepares for a competition.
Callie returns to her old foster group home and learns that paranoid neighbors are pressuring the home's landlord to have the girls removed; Mariana and Hayley plan a romantic dinner for Mat and Jesus; a letter from Ana concerns Stef.
Emotions flare when the children attend a Mexican street festival; Callie struggles to control her panic attacks; Hayley wants Jesus to prove that he truly respects her; Mike and Ana hope to make amends for past wrongs.
Callie turns to her wealthy biological father for a favor when she learns the Girls United foster group home is in need of help; Connor's father pressures him to end his friendship with Jude; Mat warns bandmates Brandon and Lou to cool it.
Callie and Jude each experience different feelings as they spend their first Christmas with the Fosters; Stef has a problem with Grandma Sharon's excessive gift giving; a neighbor accuses Jesus of cheating during a house decorating competition.