For use in schools and libraries only. The students of Super Hero High go on a one-of-a-kind field trip that will allow them to learn about the past, up close and personal! In fact, they will be in the past! After a time machine mishap, Harley Quinn, Wonder Woman, Supergirl, Batgirl and company find themselves in the Jurassic period! But more importantly, how will their time in the past affect their future?
