![](https://image.tmdb.org/t/p/original/8UJz7ho8mF4arYIHP3vV1banKUi.jpg)
![](https://image.tmdb.org/t/p/w342/t6tcFn0LiyKRqR76XwNfErK81cw.jpg)
Building Big / Falling Leaves
Michael feels overwhelmed by how long it'll take to build his dream treehouse. Karl copes with the loss of his favorite climbing tree.
Stars:
![](https://image.tmdb.org/t/p/w300/jdmQIEMzUzq1JI2zm8OSqPbLIos.jpg)
![](https://image.tmdb.org/t/p/w300/jESGW5K8tvjkbUbnrtJOygrMGYt.jpg)
![](https://image.tmdb.org/t/p/w300/rxHikl3TYNyZrmI7CHuVxeWxSfk.jpg)
![](https://image.tmdb.org/t/p/w300/uSS70II2bfKeZtBl5fqQH3N2XXw.jpg)
Other episodes for this season
![The Visit / Showtime](https://image.tmdb.org/t/p/w300/bntDT70fqVYbQvpOimvVz5pf0JH.jpg)
![Karl's Museum / The Helper](https://image.tmdb.org/t/p/w300/vDaPcCwNWQxn5JfGV75PVZT3mVa.jpg)
![Band Aid / The Good Morning](https://image.tmdb.org/t/p/w300/ccNIgRF5WdBARuAl8We5ZRi0149.jpg)
![Building Big / Falling Leaves](https://image.tmdb.org/t/p/w300/8UJz7ho8mF4arYIHP3vV1banKUi.jpg)
![Stitch Marks / Friends Forever](https://image.tmdb.org/t/p/w300/zrCDQGGazDcYFDWwnoulgD2Ssng.jpg)
![Hide and Seek / The Trip](https://image.tmdb.org/t/p/w300/qemeOipTWHpMQj02ZGDQF7j6vq1.jpg)
![One Drop Makes an Ocean](https://image.tmdb.org/t/p/w300/qRKH8ZSVRs5xOdPXBzaof01pHWz.jpg)