Premieres: April 8, 9 p.m., Showtime
Nurse Jackie has finally hit bottom. In the chilling season-four premiere, she checks into rehab after smoking crack with a guy she picked up at church! The series-changing plot twist is long overdue: Jackie had been using drugs for so long without consequences that the storytelling was starting to ring false. Her journey in sobriety is just the shot in the arm this show needed. In fact, Jackie (the amazing Edie Falco) is more interesting sober than high. -- Mark McGarry
Photo credit: Showtime
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