In a future where Earth has been nearly wiped out by an alien invasion, only one plant species has managed to survive: the resilient cactus. However, these extraterrestrial invaders are determined to eradicate all the cacti in their mission to dominate the planet. The last hope for humanity rests with Granny, a courageous elder who has cultivated a cactus garden along the road, ensuring they still get the sunlight they need to thrive. With her vast supply of human medicine and a trusty shotgun at her side, Granny is ready to defend her precious plants. The aliens, it turns out, have an unusual fear of human pills, and Granny intends to use that to her advantage. Your task is to help her protect the cacti, fend off the alien threat, and restore life to Earth. Will you rise to the challenge and save the world from extinction?