David Lengel

A famous comic-book artist (guest star Frankie Muniz) helps to search for a serial killer in Los Angeles.

Kate visits Toby.

The team looks into a series of threats against congresswoman Jenna Flemming; Director Vance takes charge of temporary protection detail.

House and the team treat a high-profile fitness trainer who collapses while shooting an infomercial; Thirteen participates in a clinical trial led by Foreman.

Charlotte faces painful memories of a horrible tragedy; Amelia continues to spin out of control; Addison takes a step closer to motherhood.

When Maya gets sick, Jimmy is forced to be the mom of the house, and Dylan becomes Kenneth’s replacement for JJ when Kenneth also gets sick. Jimmy ends up doing well with Maya’s normal duties, but he tries to keep it from her to avoid her feeling bad. Meanwhile, JJ protects Dylan from a boy she’s interested in. And despite its illness, the family bands together and pulls an all-nighter to finish Ray’s school project.