This time around, Max is forced to save the world (surprise!) and we finally know what all of the kids are trying to save the world from! At least so far, anyway! The company Itex is becoming out of control and it's up to the kids to save the world from (drum roll please) the Director who wants to pollute the planet and kill half the world's population. Strangely, the flock seems to be more concerned with the Global Warming and pollution, which was a minor annoyance that I had with this particular book in the series. I guess James Patterson really wanted to voice his opinions on global warming and the pollution of earth. The Erasers are completely destroyed on the exception of Ari, and are now replaced with creatures called Flyboys, which are basically an upgraded version of Erasers; they can now fly, which makes them all the more dangerous. 
 Romance is kicked up a notch in Saving the World and Other Extreme Sports. I kind of knew it was coming, especially with the events of the last book. There are some swoon-worthy moments involving Max and Fang in a cave where it becomes apparent that Fang has feelings for Max, but at first Max doesn't voice her feelings for Fang. This all changes when Max has her chip removed at Dr. Martinez's home and Max (finally!) tells Fang that she is in love with him. I really enjoyed how their relationship progressed and I love how James Patterson took it nice and easy with these two characters. 
 However, Mr. Patterson throws us another curve ball later on in the story with an announcement from Jeb. Things become even more complicated when Max extends an invitation to Ari to join their flock. Not everyone is particularly happy about Max's decision and half of the flock leaves because of it, including Fang. After this point, a ton of action takes place and many secrets are uncovered, including the revelation of who Max's parents are. A major fight is about to take place between Max and the Director's latest experiment, an extremely strong male character named Omega Boy.