Jim Panzee has caught a strange new bug, and it is making him act completely out of character. Instead of his usual grumpy self, Jim is running through the jungle, laughing, shouting with glee, and feeling very silly. Naturally, his friends are incredibly worried. When Norman diagnoses him with a bad case of spring fever, Jim knows he needs to find a cure fast so he can get his beloved grumpiness back. His jungle friends have plenty of ideas to help him return to normal. You can follow along as Jim tries taking a calming breath, sniffing lavender, taking a nap, and even sitting in a time-out. But nothing seems to work, and soon the silly spring fever starts spreading to the other animals. Get ready for a hilarious celebration of springtime as the entire jungle erupts into contagious fun. This laugh-out-loud adventure shows that sometimes it is perfectly fine to let go of your grump and just enjoy the season.