Sean tells Robert and gang to delay their arrival back to PC, and gets Tiffany and her camera man to banker, Tuner, who they find dead. At the penthouse, the group all share notes, and a thrilled Robin learns of her parents' engagment. Senator Gaines is killed shortly, leaving behind a suicide note clearing the Scorpio brothers of embezzlement. Robert's reinstated as police commissioner.  Everyone's surprised when Dominique suddenly shows up, claiming to have run away from her husband. Anna's still slightly suspicious of her, though Mac quickly reconnects with Dom and, with Finian's help, hides her in the penthouse above his new club, The Outback. Anna helps Dom with a disguise so she can freely wander around PC. Robin and Robert decide they want to have a huge wedding ceremony, and nag Anna to agree, but she keeps putting them off. Finally, at a family dinner, she tells the happy pair that she too wants to have the "biggest damn bash Port Charles has ever seen".

Sean's given another case, when Bill Eckert asks him to track down his old prison buddies, which he does. Rory's old building superintendant, who's been secretly keeping Rory's belongs, is caught by Robert and Mac. The plastique, knife, and explosives in Rory's footlocker help clear Mac of all charges. At dinner to celebrate Mac's being a free man, Robert and Anna's pent up sexually frustration drive them crazy, tempting them to break their celibacy pact. Mac doesn't show up because his with Dom, which proves to be a blessing because Anna spots Leopold sitting at the bar. Robert and Anna think he's in PC looking for Dom, but Taub doesn't even know she's missing yet.  He's actually there to meet Faison, Paul and Harlan. Feeling guilty for having recommended Paul to the Quartermaines, Sean breaks into Paul's safe and steals a coded file.

A Bloomin' Wedding
While flower shopping, Anna gets jumpy and tells a confused Robin that "it feels like someone just walked over my grave". The stalked feeling lingers during clothing shopping and at lunch when a man delivers a red orchid to Anna. There's no card and Robin attributes the romantic gesture to Robert. Unfortunately, he tells Anna he didn't send the flower and didn't even know where they were luncheoning. He then teases her by asking should he be jealous. Smiling, she responds, "You should always be jealous. It's just good manners." They kiss, though Anna's even more spooked then before. 

Robert and Mac are thrilled when Tanganeeva, their aboriginal friend from childhood, shows up for Robert's wedding. While thrilled the brothers have made up, he also warns them that a darkness is coming. Hearing the happy couple will be marrying in a public park because the wedding was so last minute in planning, Monica offers the duo the Shakespearean Gardens as Lila's wedding gift to them. Thrilled, the happy couple accepts. Monica also offers to let Anna use the Q mansion to dressup for the ceremony. Mac agrees to be Robert's best man, Robin will serve as Anna's maid of honor and Sean will walk the bride down the aisle. Tiffany, Bobbie and Felicia will be the other bridesmaids. Tanganeeva and some aborigines will be guarding/escorting the groom.

Both Robert and Anna are jittery on their wedding day. Anna's getting weird vibes and is horrified when Faison enters. "I'm marrying Robert today," she insists when Faison makes it clear he still wants her. "Are you sure you're marrying the right man," he purrs. He blocks her escape and locks them in. Meanwhile, both Robert and Tanganeeva are getting bad vibes and Robert shocks the guests by taking off down the aisle. A confused Sean tries to prevent Robert from entering Anna's room but once the duo find the door locked, they immediately realize something's wrong and break the door in. Furious to find Faison holding Anna, the groom punches him out. Anna restrains Robert and Sean and orders Faison to leave. The wedding's on again until Dominique starts having flashbacks about her own bloody wedding [where her father was shot down before her], begins screaming and grabs a security guard's gun. Mac gets the gun away from her. Finally, Robert and Anna are able to exchange their vows. 

Robin's fussying at the reception, afraid that something will go wrong. She's been waiting her whole life for her parents to be together the teen tells her amused parents. Anna tells her to relax. Sean toasts the happy couple; Mac toasts Anna for her ability to make Robert a brother he could love. Lucy and Tracy duel for the bride's bouquet, with Lucy [who wasn't even invited to the wedding] winning. As Robert says goodbyes to everyone, Anna climbs into the limo and is unnerved to find a red orchid waiting for her. She tosses the flower out as Robert climbs in. As the limo drives off, a worried Tanganeeva crushes the flower with his feet.

Honeymoon Hell
Robert's suprise honeymoon turns out to be a real nightmare. Their travel arrangements are lost, they end up with separate bunks on the train, and then hotel is a flea pit. Anna's attempt to make the best of the situation fails when the bed collapses on the couple. "That's it, everybody out of the pool!" Robert shouts. After a few phone calls, he blindfolds Anna with his tie and takes her to another hotel, which turns out to be the place they first made love fourteen years ago. Anna's touched by his romantic gesture. Awakening from a nightmare, Anna panics when she finds Robert gone. He returns from a midnight swim and reassures his upset bride nothing will happen to him.

Their lovely honeymoon is ruined when they run into Larry Ashton in the dining room and the annoying twit leeches onto them. Robert's not amused by Larry's repeated touching and kissing on Anna. Another orchid arrives for Anna, this time with a note from Cesar. She throws it away before Robert sees. Feedup with Larry's presence, Robert threatens bodily harm and the duo ditch Larry to sneak up to their room for some romance. 

On their last night, Robert gives Anna a silver locket and chain with pictures of them and Robin. "Oh, our family," Anna coos as she slips the necklace on. Later, Anna wakes up cold and finds another note, this time on her balcony, as she closes the open french doors. She tosses the note and climbes back into bed next to Robert scared. 

Sleeping Beauty
Back in PC, Robin develops a crush on Connor and follows him around like a puppy. Mac asks Felicia to help him run the club. Dom gives Mac the code book, which he passes along to Sean. At the same time, Taub learns Dom's took off with her money and his code book. He sends his goons to retrieve her. Sean realizes the code book is similar to the one he took from Paul, who warns Donely to not get involved or else. Sean also tracks down Faison and demands to know why he's back. The two exchange barbs. Faison then orders Paul to call Sean for a meeting, then stand him up. At the Donely penthouse, Tiffany and Robin, who's staying with the Donely's till her parents return, get ready to turn in for the night. Cesar spikes Tiff's milk then hides on the balcony. He's alarmed when she offers the milk to Robin, who luckily turns it down. He departs after cleaning up evidence of his visit. Robin's horrified when she can't wake Tiffany up and calls the paramedics. Sean walks in as the paramedics are carting Tiff off. 

At GH, the doctors can't figure out what's wrong with Tiff, who's slipping in and out of a coma-like state. Sean hugs an exhausted Robin and thanks her for levelheadness. When Sean visits the Outback, Connor pulls out an old photo of him and thinks Sean might be his natural father. Paul angers Sean by giving him a vial which supposedly contains a serum to cure Tiffany, temporarily. Tony's baffled by the serum when Sean asks him to analyze it. Paul tells Sean in order to keep Tiff healthy, he'll have to earn more pills. The Scorpio arrive back to the PC Hotel, where they will temporarily stay until the penthouse next to Sean's is renovated, and are upset when Robin tells them about Tiff. At GH, they find her awake with no memory of what happened. Sean tells Robert about Paul and the pills. If Paul has the cure, then he must have infected Tiff to begin with, Robert warns. Both swear to bring Paul down.