In order to prevent the worlds glaciers melting, climatologist Jason Box has the idea to cover them with a reflective blanket. This should reflect a high percentage of the suns light, minimizing glaciers meltdown. The test site is set to Greenland. The Discovery team tests several materials before finding out that the idea is already implemented in Austria where a material is used for the same purpose, to conserve glaciers. But the material used by Austrians must be tested in the harsh Greenland weather. Despite the hard weather conditions the team manages to set up a test site. The team leaves Greenland only to come back after some time to check the results. The questions are: Will the idea work? Will this be enough to save the world?