After a ferocious summer storm, Hammy and Martha find a Golden Coach in a clearing. After everyone takes turns going for a ride, Granny Rabbit suggests they all take it back to its rightful owner.
After raising the old tugboat, Martha and Hammy repair and polish it. When Hammy takes the vessel out on the river, he hears a far-off song that leads him to a surprise.
GP spies a mysterious white, dimpled object through his telescope. When it crash-lands on the Riverbank, the Wise Old Frog calms GP's fears and the animals hatch a plot to send the white ball back where it came from.
The mysterious Mr. Spooky arrives for Scaryday, scaring Hammy, Martha and Turtle and sending miniature spookies floating all over the Riverbank - all in good fun, of course.
Hammy gets restless when he sees all the animals preparing for winter, but Martha explains to him that some of the animals must hibernate until spring and GP eases his worries with an autumn drive.
The animals awake in the middle of winter to find the Riverbank buried in snow, and they are shocked when the snowman they build suddenly demands chocolate cookies.
