The Fosters S03 E12 Mixed Messages

"How do you define family?"

Brandon is upset when he learns that his shared secret with Callie is in jeopardy. Lena and Stef’s mother, Sharon, disagrees over how Stef should handle her diagnosis. Meanwhile, Mariana’s run for junior class president heats up as the simmering resentment between her and Lexi comes to a head.