Lassie - Episode #48 - "The Tree House" - Season 2, Ep. 22 - February 5th 1956

Jeff and Porky decide to build a tree house, and when it is finished they want to spend the night in it. They have Lassie and Pokey join them, but when Pokey starts howling at the moon while the boys are trying to sleep in the new tree house, the two boys get in a fight and Porky goes off in a huff. When Jeff returns to the tree house the next day he finds the tree house in a shambles, and is convinced that Porky did it...until he finds the true culprit.
NOTE: NOTE: Lassie and the Lassie Trademark are owned by Dreamworks Animation LLC. This episode was publicly broadcast in February 2017 via free over the air (OTA) antenna TV through NBC affiliate COZI TV. Recorded, edited to add titles and copyright information, and uploaded by Collie Lover to RUclips with no remuneration whatsoever. All RUclips pre-video advertisements are authorized and placed by Lassie copyright owner.