Kate Rene Gleason

Jane deflects Ziggy's questions about why they moved; Madeline is outraged over a slight from Renata; Celeste suggests that she and Perry should see a counselor; Nathan and Ed meet in hopes of smoothing out tensions between their wives.

Agent Emily Prentiss is assigned to the unit as the team looks into two serial killers who seem to be competing against each other.

A fuel tanker explodes on a highway, resulting in multiple injuries; Jo and Meredith try to help a frantic woman, whose child has a mysterious illness; Alex is forced to work with Jo's boyfriend.

Gibbs must face the reality of his actions after he assists Ziva with "the one thing" she said she would need to take care of before returning to her family.

Jack and Henderson wage an assault on the submarine, as Bierko prepares to launch an attack against LA. Chloe brings in someone from her past to aid her. Martha and Pierce enlist Novick's help in their plans to expose Logan.