An 856-foot-long luxury ship is taking on water, and no one knows exactly why. Riley heads to San Francisco Bay, where a team of specialists have just 15 days to pull this mega-ship out of the water, tear it apart, dive into its belly and find the leak. They'll need to work around the clock, because in just two weeks more than 2,000 paid guests arrive for the vacation of a lifetime! Reputations and a boatload of money are on the line.