René Ashton

Kara goes toe-to-toe with Astra (recurring guest star LAURA BENANTI) when her aunt challenges Kara's beliefs about her mother. Also, Cat is threatened with being removed as the CEO of CatCo after a hacker exposes her private and damaging emails.

The team leads a class of college students through the nearly 20-year chase for a serial killer.

Sean tries to come to terms with his feelings for Julia; Christian meets someone who understands what he is experiencing; Liz and Christian analyze their relationship.

Addison and Sam stage a coup to bring the practice out of bankruptcy; Violet and Cooper's friendship is on the brink of extinction; a married couple fights for an unethical fertility treatment.

Secretary of the Navy Sarah Porter's daughter is kidnapped; NCIS Special Agent Valerie Page, McGee's childhood friend, assists the team with advance tactics training.

Ray waits to see if Belikov will be released from prison; Ray encounters former clients at a benefit; Teresa battles postpartum depression; Mickey tries to convince the DA that he was behind the Minnassian massacre.