'Nurse Jackie' Season 4 Promo: Welcome to Rehab (Video)

"Nurse Jackie" (Showtime)
Ken Regan/Showtime

Star Edie Falco

Nurse Jackie is going to "Disneyland." But in Jackie's world, the Happiest Place on Earth is rehab.

In the first teaser for the dramedy's upcoming fourth season, Jackie's (Edie Falco) past is catching up with her and the drug addict cashes in her vacation days as she prepares to detox.

STORY: 'Nurse Jackie': Green Day's Billie Joe Armstrong Makes an Impression

"You're only as sick as the secrets you keep," she says in the clip setting off a string of highlights (lowlights?) from her tainted past.

Check out the teaser below and hit the comments with how funny Merritt Wever's Zoey is when she says, "I had no idea that you didn't go to Disneyland."

STORY: 'Nurse Jackie' Books Bobby Cannavale for Major Guest Role for Season 4

Nurse Jackie's fourth season, featuring guest stars Bobby Cannavale and Billie Joe Armstrong, begins Sunday, April 8 on Showtime.

Email: Lesley.Goldberg@thr.com; Twitter: @Snoodit