There are no edible plants... the remaining plants will try to kill and eat you.

People are barely surviving on synthetic food provided by the Food Company. The only man that has been delivering real food (burritos) to Pueblo has gone missing. One brave woman, one brave-ish man and his mutant avocado sidekick venture out into the wastelands to find him. They are accompanied by a sassy AI that tries to protect them as they drive headlong into the dangers of the Wasteland.