It's carnival time, and the teams will be split down the middle, running one side of the fun fair each. Don't expect just your average jumping castles, though - the celebrities will have to work hard for their money, with being dunked just the start.

Celebrities are used to being in the limelight, but this week they are being charged with causing an absolute stir. They must create a publicity stunt that promotes Mark Bouris's company, Yellow Brick Road. The ideas are extreme, and from overnight sleep outs to getting naked for charity, the celebrities will stop at nothing.

The celebrities must become the welcoming party for the P&O cruise liner The Pacific Jewel. They must take charge of the turnaround service as well as create a welcome show and perform it for a live audience of new passengers.