When the family takes a vested interest in AJ, Callie has doubts about whether she can trust him. Stef surprises Lena with some news about Monte. Meanwhile, Jude has trouble moving on from the trauma of the shooting incident.

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.