An alien smuggler brings some strange seeds to Earth. When the MIB bust the smuggler, the seeds sprout legs and escape. Although they can't germinate on Earth, a quick trip through Frank the pug's stomach produces the necessary soil conditions. The seeds hatch out and reveal themselves to be the Nrak, an intelligent species of plant. In true "Bodysnatchers" fashion, the Nrak put down roots and begin enslaving the human race.