Molly the cow is on raft and winds up being washed ashore on some island. A final wave transforms into a fist, picks up Molly and punches her inland. After reviving, the cow chows down on some bananas and now feels better.
Along comes a singing Robinson Crusoe, "all alone and free from terror." The lyrics stress how happy is is to be all alone on the island, free from any responsibilities. Then he spots Molly's footprints and freaks out.
After they meet, Molly couldn't be sweeter, licking his face over and over but Crusoe wants none of it. This trigger-happy crabby old man keeps chasing her away and she keeps coming back to give more affection. "This island isn't big enough for the both of us," he screams, and keeps shooting his gun at the poor cow.
The final minute or so was predictable. When Crusoe gets in trouble after cannibals invade the island put him in a big pot to make stew, Molly comes to the rescue. At the very end is a racist bit when Molly puts on black-face and Crusoe proclaims, "Friday!" and now everything is cool.
"Molly" cartoons were cute more than they were funny. She is such a good-hearted "person" that she's endearing.