When Matt discovers a new Internet game called "The Furious Four," he starts to assume the character of the vengeful Meltdown Man, whose superpowers are triggered by anger

Brooke is thrilled to find a new friend on the Internet. He goes by the name "Lizard Boy," and he seems to know more about dinosaurs than anyone she's ever met. But when Brooke enters the Dino World chat room, she has a chance to meet the mysterious Lizard Boy at last. And now she's in for the surprise—and fright—of her life.

Andy Winkler finds himself trapped in the body of the aged Rip Van Winkle in a virtual reality game based on characters from Washington Irving's stories, and unless he can find his way out before he turns one hundred, he will be stuck there forever

Ian receives an e-mail from a friendly space alien called Roy who wants his help in introducing a new game called "Bug Out" to help his people make friends with humans, but it begins to look like Roy's plans are too good to be true

When Chris explores a mysterious Web site called "TimeSolvers," he unintentionally creates a double of himself and must try to clear up the mess he has created before his clone takes over his life

Amanda and Jeff only want to keep in touch with their friends. But something else finds them on the internet.