Mac is a mouse that loves going on adventures! Today is Mac's birthday. Mac has a wonderful day, filled with many fun adventures. That night, however, Mac discovers that his adventures are just beginning. Filled with familiar sights and sounds, Mac's mind takes him on a journey that leads him through a scary grass forest and into a frightening coffee-cup whirlpool! After what seems like a very long time, Mac's journey finally comes to an end, and he finds out that there was nothing to be afraid of after all!