It's Kevin's wedding day and Jackie's going–not because she wants to, but because Fiona begged her. Luckily for her, she's got a serious stash to get her through. Akalitus has turned her suspicious eye on Jackie now that the DEA is breathing down her neck. Helen (the drunk nun that Jackie connected with in previous episodes) is brought in after a suicide attempt that will ultimately end her life in a few hours. Jackie cares for Helen along with all the other women in the ER. And to cover her own ass, Jackie convinces Helen to pass herself off as Nancy Wood, which takes Akalitus off the scent. Meanwhile, Carrie demands that Coop introduce her to his mom and he surprises her when he says he can't until they're serious. So Carrie uses her newfound local tv notoriety to out their relationship. But Jackie's drug use is at its zenith and after writing a gorgeous recommendation for Zoey's graduate program, Zoey witnesses Jackie make a near fatal error with a patient. And Zoey's suspicions are raised and then confirmed once Helen dies. Jackie attends Kevin's wedding which is going smoothly until Grace pieces together that Gabe's a dealer. Jackie and Gabe get into an argument that turns physical and after a serious altercation, Jackie and Gabe are both kicked out of Kevin's wedding. And Zoey walks into Akalitus' office to inform her about Jackie.