Charlie is going camping with the school and his classmate, Big Louis, the biggest boy in his class, is his partner. Ever-prepared Charlie has packed lots of things in his backpack. As soon as they arrive Charlie accidentally hits Big Louis on the foot with a hammer but... fortunately Charlie has all the essentials to make a cast for it. Unfortunately for Big Louis, he puts the cast on the wrong foot! As the day goes on, with one mishap after another, Big Louis asks the teacher to change partner, but when danger strikes, Charlie shows that a good friend is always there to help.