They locate what they assume to be their tree amidst a batch of logs in the river, awaiting transport to a lumber mill.
The two begin rowing their home back to the forest but, not only are they going the wrong way, but also the current overtakes them, sending them over a waterfall.
Indeed, the gophers assume their home will be transformed into furniture and, after failing to prevent this, they venture outside and witness various pieces being loaded into a truck.
With the truck unguarded, Mac and Tosh unload their furniture and stack it on top of the stump where their tree used to be.
On ABC and the former WB network, the scene of one of the Goofy Gophers siphoning gasoline out of the furniture delivery truck and getting poisoned after swallowing some by mistake was cut (so as not to inspire any copycat incidents).