After a long day of work on the farm, Tractor is ready to relax.

When a big new yellow tractor arrives, Otis the friendly little tractor is cast away behind the barn, but when trouble occurs Otis is the only one who can help.

When the animals and equipment at the farm need more space, Tractor Mac comes to the rescue by helping to build a barn.

"A brother and sister explore all the different kinds of tractors there are"-- Provided by publisher.