[s4e6] Whatever It Takes May 2026

Brennan insists the patient has polio—a disease long eradicated in the U.S. While the patient eventually recovers, Foreman discovers the truth: Brennan poisoned her with thallium to simulate polio symptoms, hoping to prove his experimental treatments were effective . Episode Highlights

Features Michael Michele as Dr. Terzi and Thomas F. Wilson (known for Back to the Future ) as the drag racer’s father . [S4E6] Whatever It Takes

A mystery agent with severe, unknown symptoms that House must solve with limited background information . Brennan insists the patient has polio—a disease long

House clashes with a prestigious Mayo Clinic doctor while working alongside Dr. Samira Terzi , a CIA physician he eventually attempts to hire . Terzi and Thomas F

House realizes the agent was stationed in Brazil, not Bolivia as claimed, which leads to a diagnosis of selenium poisoning from eating too many Brazil nuts . Case 2: The Drag Racer

Back at Princeton-Plainsboro, Dr. Eric Foreman is left in charge of the six remaining fellowship candidates to treat a female drag car racer, Casey, who collapsed after a race .