Watch HDToday. While doing their annual Laundry Day, the Kratt brothers disagree on what’s better: blue oceans or green forests. They’re disagreeing much more than usual. Aviva takes on the role of referee to demonstrate how oceans and forests work together to make our living planet, just like Martin and Chris need to keep working together. Can the gang get Martin and Chris back in sync in time to save Planet Earth from Zach and Paisley Paver’s villainous plans?