It was supposed to be a relaxing summer vacation filled with hanging out and playing video games for the three Larson children. That was until Kate, Nate, and Tate discover a mysterious mom-velope, sitting on the kitchen table, announcing they are being sent to a previously off-limits sleepaway camp in the middle of the Rocky Mountains. An incredible adventure begins when the siblings discover they have been sent to a top-secret camp to train children with hidden superhero abilities. However, as if mastering new superpowers wasn't challenging enough, Kate, Nate, Tate, and their newfound friends, get mixed up in a decades-old plot to destroy Camp Crusader. Will the children be able to locate and protect a powerful ruby that contains the soul of a madman before it falls into the wrong hands? Or will Kate, Nate, and Tate's plan be foiled by an army of skunks, cinnamon roll obsessed campers, and the cow-pie-eating camp bully?