An airborne amnesia virus spreads panic. It also spreads memory loss.

Owen is stunned when a pop superstar pays a visit.

The doctors are not interested in how Chief became Chief.

The doctors don't have a care (or patient) in the world.

The actors behave worse than the doctors they play.

Owen helps a police detective (MICHAELA WATKINS).

British adaptation of America's long-running medical show.

Single moms get discounts and male doctors get horny.

Sy is a former super spy and his old partner wants him dead.

The identity of the mysterious public announcement announcer is finally learned. Guest star JON HAMM (Mad Men) appears - but not as the mysterious P.A. announcer.

Lola has no friends or pets so she gets a law degree and defends Owen.

The Mafia invades the hospital. A main character is killed.

Newsreaders report on the death of one of the cast members.