Written by Margaret Armen and directed by Dennis Steinmetz, it first aired in the United States on September 21, 1974 on NBC.
Will and Holly try to push a wagon built by Rick, but conclude that without an engine it isn't worth the trouble.
When Holly offers Dopey a strawberry, the apatosaur begins to chase after them and ends up stuck between two trees.
It begins yowling and attracts the attention of many other dinosaurs in the jungle, including the tyrannosaur Grumpy.
After breakfast, the family leads Dopey to the swamp, where he joins a mother dinosaur the Marshalls have named "Emily."