Je browser ondersteunt niet alle moderne javascript code. Lees dit topic voor meer informatie.
| Special | Eerste uitzending |
|---|---|
| S00E01 - Ultimate Treehouses 1 | 29/05/2013 |
| S00E02 - Ultimate Treehouses 2: The Roots | 14/02/2014 |
| S00E03 - Ultimate Treehouses 3: American Masters | 27/02/2015 |
| S00E04 - Ultimate Treehouses 4: Engineering and Ingenuity | 14/08/2015 |
| S00E05 - Lost in the Forest II | 11/08/2017 |
| S00E06 - Euro Trip! | 18/08/2017 |
| S00E07 - Operation Redesign | 08/09/2017 |
| S00E08 - International: France | 02/03/2018 |