Avid travelers Charles and Karen have visited nearly 100 countries on all seven continents, but have returned to their very first destination, Puerto Vallarta, Mexico, to buy their dream vacation home. Over the past 15 years, they've changed their careers, worked second jobs, and saved as much as possible to purchase a piece of paradise. But now that they're ready to buy, they're discovering that they each have slightly different visions of their dream home. Find out if real estate agent Taniel will be able to satisfy opposing wish lists when House Hunters International travels to Puerto Vallarta, Mexico.