During a Frisbee game, Roger and Fatou flatten a very rare plant that Fatou’s dad has just discovered. Luckily Roger has a brilliant remedy for rejuvenating plants: Plantoraga! But after an argument with Fatou, Plantorga contaminates all of the water in the pond where Roger goes to drink, as do some of the animals. They all go completely whacko! There is only one remedy to cure them: the sap from the rare plant that has been treated with Plantoraga, except that Dad has taken it with him to his lab. It’s going to be nearly impossible to discreetly recover a plant when you’ve gone right off the deep end of normal behavior!