Dragon Ball Z. Simply it's about guys who use kung fu to fight invading aliens who want to destroy earth. Sounds kind of simple and sort of corny. Good thing the plot gets deeper and more incredible.
Story: Learn Kung fu. Protect the earth from invading aliens. Learn the truth about your origins. Gain super incredible powers. Eat large amounts of food. Shoot pure energy from your hands. Die. Come back to life. Do it all over again. That's just a little bit of what makes up DBZ.
Like all great shonen mangas, they're strong points are comedy and action. I recommened this for anyone who is really into that kind of stuff. If you get wowed at the beginning of DBZ, just wait, it gets better. If you don't get into it, try reading the later chapters. That's when the fights get even better.