Four young adults join a program called the Guardians to protect the world from a power-hungry tyrant and a viral mutation that threaten to destroy the entire world. Contains science-fiction tech (no magic here, people. This is standard science-fiction)

When Casper High gets four new students,Danny's world gets turned upside down. He develops powers that he didn't know he had and on top of that Clockwork can't see into his future anymore! WHAT'S going on? And WHY is there a new group of Ghost Kids in Amity Park!? And HOW are there four new doors in the Ghost Zone!?