David Lengel

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.

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

Bosch nabs a murder suspect, while others keep a close eye on the investigation. After an encounter with Vegas mob boss Joey Marks, Bosch faces questions about the past of someone close to him. George Irving makes important inroads. Deputy Chief Irving clashes with LA's political machinations.

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