René Ashton

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

Russell borrows a holiday gift concept from Adam; Audrey tries to make people laugh.

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.

Putting a pimp back on the street poses a dilemma for Ray.

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.