House returns from his three-week baseball break, rested if not quite ready. (He doesn't have his medical license back yet.) He'll be at a medical conference on pharmacology with Cuddy and Wilson when his snoop, Lucas (Michael Weston), unexpectedly shows up. Back at the hospital, tonight's mystery disease has befallen a partying teenage girl whose appendages have swollen for no apparent reason. She also can't distinguish between fact and fiction.
Read on for previews of How I Met Your Mother, CSI: Miami, Lopez Tonight and How the Beatles Rocked the Krelmin.