The church bus will be taking off on Friday for Camp L.O.S. Karen Aimee had planned to visit her father in New Mexico while her best friend, Melanie Honeywell, went to camp for the first time. When Karen's dad cancels the visit, the girls make a mad scramble to get enough money for Karen's camp fee. Campers swim, canoe, hike, and go horseback riding. They can also get lost, get sunburned, and get in trouble. Melanie must have her friend beside her for all the adventures.