Despite wacky weather threatening the San Francisco area, life for the Charmed Ones is as normal as ever. Normal, that is, until eleven-year-old Tyler Michaels shows up at their door. Tyler, a Firestarter, is on the run from demons. Though the Halliwell sisters have dealt with Tyler before, a glance at the Book of Shadows turns up new, unexpected information about the boy ... and the forces for which his magic can be harnessed.