Meet Sama, a 10-year-old boy who is so sad that tears have stained his cheeks. His father, the rock of his life, has had a heart attack. Doctors give him a month to live. With his teddy bear in tow, Sama seeks escape from his sorrow and crawls under his bed...only to find a magical portal to a strange place called Undertown. What is this dark new world? And will it help him save his dad?