Walnut Grove are sick of losing the baseball competition every year and one thing they desperately need is someone who can pitch better than Nels Oleson. Along comes Mr. Mumford who shows his stuff while throwing stones at a chicken hawke.
The who town turns out to watch the match against neighbouring Sleepy Eye but the game and the result (and therefore the episode) is very predictable. Mr. Mumford makes a fantastic pitcher and the visiting team don't know what hit them because they certainly didn't hit much!
Mrs. Mumford, very much against gambling, is happy when she learns that wagered money will go to a worthy cause so all is well that ends well. Quite dull but Mr. Edwards, as usual, was very amusing, showing once against the excellent comedic talents of Victor French.