What is the summary of the book run for the hills Geronimo?

"Run for the Hills, Geronimo!" is a book by Geronimo Stilton where he becomes lost in the mountains after a plane crash and must find his way back home. Along the way, he faces various challenges and encounters new friends who help him navigate the wilderness. The story emphasizes themes of perseverance, friendship, and the importance of working together to overcome obstacles.