- The plane crash: Brian survives a plane crash that kills the pilot and leaves him stranded in the wilderness. He must learn to survive in harsh conditions, such as finding food and shelter, and protecting himself from the elements and wild animals.
- The harsh wilderness: Brian is stranded in a remote area with no modern conveniences or tools. He must learn to navigate the wilderness, find food and water, and build a shelter to protect himself from the elements. He also encounters dangerous animals, including a bear, moose, and wolves.
- Loneliness: Brian is completely alone in the wilderness and must cope with the loneliness and isolation. He misses his family and friends and longs for human contact.
- Fear: Brian is constantly afraid for his life. He is afraid of the unknown, of being attacked by animals, and of dying alone in the wilderness. He must overcome his fears in order to survive.