"Disney's Descendants" isn't just an idle threat, as Disney Channel proves in this first full trailer for the TV movie that looks as if it were stitched together, Frankenstein-like, from the discarded parts of '90s "Power Rangers," "High School Musical," "Mean Girls" and MTV's "Teen Wolf."

Premiering in July, "Descendants" follows the children of four iconic Disney villains -- Cruella De Vil, Maleficent, The Evil Queen and Jafar -- as they're leave the island prison where their parents are held to attend prep school alongside the offspring of Disney's heroes. However, they must grapple with a decision: to help their wicked parents regain power, or embrace their new home and help save the kingdom.

"Disney's Descendants" stars Dove Cameron, Mitchell Hope, Sofia Carson, Booboo Steward, Cameron Boyce, Jedidiah Goodacre, Sarah Jeffery, Dianne Doan, Brenna D'Amico, Kristin Chenoweth and Kathy Najimy.