Middle-aged best friends Barb and Star leave their home of Soft Rock, Nebraska for the first time to go on vacation to Vista Del Mar, Florida. They are apprehensive about trying something new. The two friends construct a narrative about a woman named "Trish", who becomes a water spirit. Upon arrival, they find accommodations at the luxurious Vista Del Mar Hotel and resolve to try many excursions, particularly an inflatable banana inner tube ride.
