Lock those medicine cabinets: Showtime announced that 'Nurse Jackie' will return March 22, 2010, at 10PM.Now in its second season, the Edie Falco-driven dramedy follows the exploits of Jackie Peyton, a nurse at New York City's All Points Hospital. The show got off to a hot start last year with Showtime's highest rated debut -- more than one and a half million viewers tuned in for the June 2009 premiere. By bumping it up a few months, Showtime seems to be thinking 'Jackie' has more potential than a summer series.
Controversy arose after the premiere, when subsequent plots revealed a lead character who often violated ethical codes for her patients. At the same time, it depicts a woman who struggles with her own prescription pill habit, and the less than admirable ways in which she obtains drugs.

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