Keeping track of CO2 emissions can give travelers a new perspective. Can a 1,250km journey from Kyoto Prefecture to Shiretoko in Hokkaido Prefecture be done in just two days, with emissions limited to just 100kg? If our travelers make their goal, they'll be rewarded with a nature experience in a Natural World Heritage site. But if they exceed the set CO2 limit at any point during their journey, they'll be sent home immediately. Two students with very different views on the environment use various means of transport to make their way to their goal, facing unexpected obstacles and problems along the way. A 21st-century travel show that grapples with the global problem of CO2!