Welcome to the sleepy little town of Comet Valley, where nothing much exciting ever happens. That is, until the town is invaded by sentient plants from outer space! Intent on taking over the Earth, this fearsome foliage has found a diabolical way to pollinate humans, turning them into walking, talking and killing "Seedpeople"! Can Comet Valley's resourceful residents fight off the alien invaders, or is the planet doomed to become a savage garden of alien evil?