The jungle animals try to share their excitement over Christmas with Jim Panzee, but he feels too grumpy to appreciate their efforts.

"On the spookiest night of the year, Jim Panzee and his jungle friends brave the dark for trick-or-treating. But the jungle looks and sounds very different at night. As the hunt for treats gets spookier and spookier, Jim and his friends tell themselves not to be scared, but a pair of glowing eyes in the pitch-dark jungle might push them over the edge! Or maybe they'll make a new friend."--

When Jim Panzee wakes up feeling silly, Norman playfully suggests Jim has spring fever, sparking excitement and chaos among Jim and their animal friends until Norman clarifies the true meaning of spring fever.