Hot Wheels Let's Race: Cleanup Challenge features two comics for young readers based on episodes from the hit Netflix kids show, 'Hot Wheels Let's Race'. In the first comic, 'Trashed Tracks,' the kids find out that procrastination can only make clean-up duty worse as their piles of trash multiply and end up all over Hot Wheels City! In the second comic, 'Mini Coop', Squeakers the robot is on clean-up duty in the Ultimate Garage and uses the Shrink-O-Tron to make the mess smaller -- unknowingly shrinking some of the racers in their Hot Wheels cars as well. Can the now tiny racers use their brainpower -- and car power -- to make themselves normal size again? Challenge Accepted!