In the story, there are a pair of Baolibao brothers, named Stew Deedle and Phil Deedle, who were originally good surfers on the beach in Hawaii. before they were kicked out of campus, they decided to take a long summer camp trip, so they went to Yellowstone Park in Wyoming. However, the two boys were so stubborn that they met a pretty girl and a sexy female adjutant on the way. They wanted to kiss Fangze. So joined the field lifeguard, but this time embarrassed, the field lifeguard is not so easy, these two Deedle brothers not only face many ferocious beasts, but also beware of a resentful former lifeguard Frank Slater, who is trying to destroy the beautiful natural scenery in the national park.