The series centers around Justin, a young boy who imagines himself traveling around the world at different points in history. The premiere kicks off the weeklong "Justin Time for Earth Week," which will inform preschoolers about the world around them, with a lineup of environmental and educational content. Shows include: dirtgirlworld and a Noodle and Doodle Choose to Reuse segment and online contest. Preschoolers and their families will be encouraged to be crafty by using recyclable items around the house to make their own craft project.