The Titans' Fourth of July festivities are interrupted when Mad Mod comes to the party uninvited, declaring the American Revolution a hoax and reclaiming the city for jolly old England. To make matters worse, old Mad Mod steals Robin's youth. Can the remaining Teen Titans devise a plan to take back their city and save their leader?

Robin's most prized possession is stolen by the hip hot-rodder, Ding Dong Daddy, and to get it back they're going to have to beat him in a cross-country road race. But with Ding Dong Daddy making the rules and a few unexpected rivals joining in the competition, it's anyone's guess who will cross the finish line first.