The river house is a dwelling in Attack of the Alligators!. Situated next to the Ambro River, it is home to Dr. Orchard, Hector McGill and Mrs. Files.

Inside the House[]
The Laboratory[]
In his laboratory, Orchard shows Blackmer the Sidonicus Americanus, a rare plant that grows only in this part of the Ambro River. From it, Orchard has developed a food additive called theramine, which greatly increases the size of animals fed with it. This discovery obviously has great potential as a solution to the world food shortage, and even greater financial implications.
The River House Comes Under Attack[]
Alligators are turned into giants, after Culp tips some of the Theramine down the sink. The house comes under attack, after one of the alligators chases Dr. Orchard to the front door. The Alligators set about destroying the house trying to get to the people inside. International Rescue managed to put the mutant reptiles down, but the house was left damaged.
People at the River House[]
Other appearances (Isn't that...?)[]
Apparently, the Mrs. Files, Culp, and Blackmer puppets never made another appearance on the show.