Riley and the guys are helping Aunt Jenny pack the van. She's on her way to a family hoedown in the country. Riley will miss her but is happy Aunt Jenny gets to go and enjoy home. But not so fast. Dr. Dandelion creates seeds that turns the streets of Greenville into swampland, planning to get its citizens to be unimpressed and leave Greenville for good. Aunt Jenny wishes she could leave for the hoedown but her van gets stuck in the swamp.