Thursday 17 April 2008 9:00pm - 10:00pm

Katie and Peter are coming to the end of their Australian holiday. Their two eldest children, Harvey and Junior, have gone back to England with the nannies as school has started, leaving Princess and her parents to make the most of their last few days.

Now up in Cairns and without the boys Peter has arranged for some adults only activities. First up is a day trip to the Great Barrier Reef for his whole family. As they wait to board the boat early in the morning Katie throws down the gauntlet to Peter - she’s convinced that she’s going to catch the biggest fish.

No one likes a competition more than Peter and as soon as they’re out to sea he starts fishing. Almost immediately, before Katie has even come out of the cabin, Peter has landed his first fish, a huge barracuda. The competition is definitely on… Three more fish follow straight away with Peter getting more excited each time he pulls his line out of the water. By the time Katie starts she’s already four fish down and clearly the fishing is quickly losing its appeal. She does at least catch one small fish and scores a minor victory when hers turns out to be the tastiest.

For the afternoon they move to the Great Barrier Reef to go snorkelling. Katie takes the helm of the boat and at full throttle it doesn’t take them long to get there. Peter is the first in, once he’s worked out which way round his wetsuit is actually supposed to go, and there are some amazing fish to be seen. Katie eventually braves the tropical waters but she’s not so impressed. She lasts just 5 minutes before she’s out of the water doing something much more fun – racing the speed boat.

That night, after a rest at their hotel, Peter is in a bad mood. It’s the opening night of his club and everyone’s going to be there for a special party, but he’s tired and he can’t decide what to wear. In their room before they go downstairs, Katie is winding him up and as the evening continues the couple become more and more annoyed with each other. Trying to entertain the crowd Peter works his way around the club saying hello and of course kissing all the women, much to Katie’s disgust. Meanwhile, feeling neglected by her husband Katie hits the bar and finally starts to unwind on the dance floor.

The party goes on until the early hours but overnight the mood between Katie and Peter has worsened. They’ve had a huge row and when we rejoin Katie in the morning, Pete is nowhere to be seen. Worse still the couple are supposed to be flying back down to the Gold Coast and with no sign of Peter, Katie is forced to go on her own. She’s even thinking about flying back to England without him.

While Katie’s manager, Claire, tries to organise her a flight home there’s a sudden breakthrough. Peter has resurfaced and flown down to the Gold Coast to try and sort things out with his wife. In the car on the way to meet Katie at his parents’ house, Peter tells us how the argument started. Katie said something in front Peter’s friends that embarrassed him and he flew off the handle. But he knows that ultimately they love each other and need to sort things out.

Arriving at his parents’ house, Peter asks that they can have some time away from the cameras to talk in an effort to resolve their problems.

The next day manager Claire arrives at the house worried about what she might find but Katie and Peter are on much better terms - at least they’ve started swearing at each other again. Peter and Katie head off for a romantic walk on the beach. They decide they need a holiday for just the two of them and Katie says that’ll be where their fourth child is conceived.

The next day, with the argument now behind them, the couple decide to do something fun together. They’re off jet skiing and in the car Katie takes the piss out of Peter’s singing technique. As they arrive Katie is worried that the bumping of the jet ski might be painful. She had breast reduction surgery six weeks and should be recovered by now but is still feeling some pain. She bravely agrees to give it a go but after less than five minutes it’s another problem that brings her back to dry land. The motion of the jet has given her a panic attack instead.

On the way back to their hotel Katie and Peter bicker about what would happen if they got divorced. At the hotel Katie has her hair done ready for a special night out with Peter. As he’s waiting he ponders on what Princess will be when she’s grown up. He’s extremely protective of her and eventually concludes that the only things he’ll let her do are ballet, dressage or being a nun.

It’s their last night in Australia and during dinner at a local fish restaurant the couple talk about the future and their plans to renew their wedding vows later in the year. The next day they pack ready to fly back to England…or rather Katie packs while Peter searches the house for his missing laces. It’s the ‘lace-gate scandal’ and Peter’s brother Mike is in favour of calling the police.

Once packed they head to the airport, with more than 20 bags. Katie insists that they are all wrapped in polythene in case they open during the flight. Peter and his brother Mike struggle to get them all wrapped while Katie watches on, her only task to hold Peter’s beloved camera. Once the bags are all wrapped they are weighed only to find that several of them are overweight and all the polythene has to come off so they can be repacked. And the first troublesome item to come out of the bag? Peter’s boots.

Finally after the chaos is over Peter turns to the baggage trolley just as his camera falls off and falls onto the floor with a crash. For all his work on the bags, it looks like his camera might not make it back to England in one piece.

All that’s left to do is say goodbye to Peter’s parents, Sava and Tia, and catch their flight. It’s been an amazing holiday but Katie and Peter’s Australian adventure has come to an end.