Demodogs have overrun the city! New Yorkers are being rounded up like cattle! The only hope of salvation? Four talking Turtles and six schoolchildren on a class field trip. The Teenage Mutant Ninja Turtles and the Hawkins kids convene on Times Square to send the Upside Down back to the Upside Down! But can they face something this big and walk away?Don't miss the conclusion to this year's strangest crossover!