PA: Viewer discretion is advised.

HOUSE'S WHEELS START TURNING WHEN A PRO CYCLIST ADMITS TO TAKING PERFORMANCE-ENHANCING DRUGS ON "HOUSE" TUESDAY, JUNE 20, ON FOX

Sela Ward Guest-Stars

When a famous professional cyclist is brought in after collapsing during a race, House doesn't want to treat him because he thinks he's lying about doing drugs. But when the patient is forthcoming about taking all sorts of performance enhancers and blood-doping drugs, House is definitely intrigued. Cameron is upset the patient is a hero to kids when he is clearly cheating at his sport. She struggles with the ethical dilemma of patient confidentiality and considers going to the media. Meanwhile, House tries to disrupt Stacy and Mark's relationship by attending a group therapy session with Mark in the "Spin" episode of HOUSE Tuesday, June 20 (9:00-10:00 PM ET/PT) on FOX. (HOU-206) (TV-14 D, L, V)

Cast: Hugh Laurie as Dr. Gregory House; Lisa Edelstein as Dr. Lisa Cuddy; Omar Epps as Dr. Eric Foreman; Robert Sean Leonard as Dr. James Wilson; Jennifer Morrison as Dr. Allison Cameron; Jesse Spencer as Dr. Robert Chase.

Guest Cast: Sela Ward as Stacy Warner; Currie Graham as Mark Warner; Kristoffer Polaha as Jeff; Taraji P. Henson as Moira; Alanna Ubach as Dr. Louise Harper; Tom Lenk as Allen; Austin Whitlock as Matthew; Nathan Kress as Scott; Julie Quinn as Matthew's Mother; Scott Kradolfer as Matthew's Father; Drew Garner as Blind Guy