 Bitter at all the lies, secrets and manipulations of their mutual past, Vaughn turns on his father, and is vulnerable to Andreas Avenir's promise to find Sarah if Vaughn will bring Avenir the Chi Ball.Vaughn is finally reconciled with his father after Josie returns to defeat Avenir, bringing Sarah home in the process.Dubbed "Z" by the science club students, Professor Noel Zachary (Jeffrey Douglas) is the kind of teacher that any student would want.