ER pandemonium surrounds Syd, whose wedding's on hold while she treats Dr. Augustine, a shooting victim, and reasons with her gun-wielding captor.

A crisis imperils the wedding of Owen and Syd, who's being held hostage by a desperate father seeking care for his son, a critically wounded gunshot victim.

A tornado disaster takes Syd to Tennessee, where she's awhirl in a related medical crisis. Back home, Syd's wedding plans run afoul of skunks in the rehearsal-dinner site.

A serious illness afflicting Syd makes uneasy acquaintances of her fiancé and the MD who attracts her; relationship changes test Joanie and Leo, and Robbie and Tina.

A frantic Thanksgiving weekend finds Owen at a bridal shower subbing for Syd, inundated with crises; and Robbie facing neighbors' pressure to decorate his B & B for Christmas.

Trust, resolve and guilt figure in diverse ties, including Syd's restive relationship with her fiancé; and Tina's reemergence into the lives of the spouse and son she deserted.

A female prisoner's medical plight moves Syd; Tina's disappearance unsettles Robbie; a shaggy dog's care requires special treatment, dictated by its snooty owner.

On Halloween, chaos descends upon the ER, where Syd copes with a stabbed mime, a man who believes he's a vampire and an injured, eerily insightful witch.

Nuptial plans ruffle Syd; a radio interview with a nature-show host rattles Joanie, who's set upon by a pesky crow, a frolicsome chimp and an ornery monkey.

A visit from Owen's mysterious folks unsettles Syd, who's especially wary of his intimidating mom; an intriguing call-in to Joanie's radio show preoccupies her.

Hospital crises bind Syd to a charming MD; callers frustrate radio talk-show host Joanie; an equine calamity spurs Jim; a real-estate deal haunts Robbie.

Syd adjusts to work in a hospital's ER run by a demanding MD ---and to an intensified love interest. Meanwhile, Joanie favors a radio career over romance; and Jim faces an uncertain future with Meredith.