Hm. *tries to figure out how to summarize the series*
It’s about 12-year-olds Austin and Ashley (brother and sister) and their adventures IN the internet. (The first time they get zapped into the World Wide Web, though, they have to figure out how to get back to Normal, Illinois, their home.) Their 12-year-old Aunt Jessica and (sometimes) her prize-winning beagle, Applet, are also part of the stories.