Even though Susan leaves her fiancé, Kip, at the altar, her ties to his family aren't severed---her boss is Kip's brother.

Luis is reunited with his younger brother, who arrives from Cuba all grown up---and with news of his lifestyle that troubles Luis. Meanwhile, Susan learns of Kip's engagement.

While Susan prepares to fly to Venice with Cooper, Jack tries to find the courage to utter three, make that five, little words about his feelings for her. He fails -- but Susan, having figured it out, has a miserable time with Cooper in Europe. After rejecting Cooper's extremely premature marriage proposal and returning home, she confronts Jack, accusing him of using her to compete with Cooper. Jack finally convinces her that his feelings are genuine -- but Susan tells him that she doesn't love him.

Vicki's folks arrive for her wedding---a double ceremony shared with gay couple Pete and Hank; Todd's parents ready for the birth of twins.

Edie may not make it to Vicki's wedding ceremony.

Following on from the second-season cliffhanger, Jack and Susan head from the wedding reception to Susan's place with love on their minds forgetting that Susan is letting Todd stay at her place while his parents are in town. Next day Jack sends Todd out of town on an assignment and takes Susan to dinner, but she reacts badly to his eagerness to finish the meal and walks out. Fortunately, wise Nana gives her a stern talking-to, which leads to a reconciliation. Meanwhile, newlyweds Vicki and Ben also have trouble consummating their honeymoon in Hawaii, finally ignoring a hurricane evacuation order for more important business; Luis and Maddy engage in a game of cat and mouse focusing on flirtation and rejection, with Maddy wearing provocative outfits to tempt Luis but continually refusing him.

After Maddy is rejected by a television newsmagazine, Susan and the gang find her at a bar, extremely drunk. Since Maddy has been arrested for drunk driving before, Susan worries that Maddy is an alcoholic. She also finds vodka bottles in Maddy's office. Susan rallies her workmates, and they confront Maddy to say that they're concerned about her alcohol drinking. Maddy gets indignant and leaves, making Susan feel guilty. But later, Maddy secretly attends a meeting of Alcoholics Anonymous. Meanwhile, Todd can't wait for his ""date"" at the home of a sexy woman he just met. Unfortunately, he is so excited that he does exactly what the woman wants: he buys a huge amount of Tupperware storage containers from her. Also, Susan needs a new car--and Vicki wants to make sure it meets her own standards so she can borrow it.