Mr. Grundy horribly afraid of horses, goes calling on a charming widow, Aunt Agatha. While he is on his way to her house, Mr. East calls and says he is coming right over to see her about the mortgage. Auntie is distressed, but Mabel says she will keep him away. She gives the stable boy a bunch of carrots and tells him to tie them on Mr. East's coat tails. Their horse, Dixie, will do the rest, as she is very fond of carrots. Mr. East calls and asks for Auntie's hand in marriage. He gives her a week to decide. She must either marry him or lose her home, on which he holds a mortgage. The colored stable boy misses Mr. East and when Mr. Grundy arrives, confuses him with Mr. East and pins the carrots on his coat tails. The horse chases Mr. Grundy all over the place and then up into a tree. When Mr. East leaves the house after delivering his ultimatum, a limb of the tree breaks and Mr. Grundy falls on Mr. East. They fight, and Mr. Grundy makes it hot for his big rival, but when Auntie arrives she bawls out Mr. East for picking on poor little Mr. Grundy. Mr. East leaves in a huff. Mabel, remembering that Mr. Grundy once told her he was a great horseman, gets a bright idea-they will enter Dixie in the sulky races with Mr. Grundy up and win the $5,000 and thus payoff the mortgage. Mr. Grundy is beset with a sinking feeling but cannot back out. On the day of the race Mr. East has a henchman fill up Dixie with water and apples, so when Mr. Grundy and his party arrive Dixie is bloated to immense proportions. They pump her out however and Mr. Grundy stars in the race, which is go-as-you-please over hill and dale, across country, and finishing around the track. There follows a sulky race the like of which has never been witnessed before. Mr. East, who also races, puts every imaginable obstacle in the way of Mr. Grundy, but that resourceful gentleman overcomes them every one. When they get back to the track Mr. East and a confederate ride alongside Mr. Grundy and despite his best efforts, unfasten the traces. Mr. Grundy is going so fast when the sulky drops behind, that he sits and rides on the horse's tail for a few feet. He runs back, gets the horse into the sulky backwards, having the cart before the horse, and starts out after the field. Mabel had previously given him some carrots, telling him of Dixie's fondness for them, so Mr. Grundy holds them up in front of Dixie's nose and is pushed to victory. At the finish, Aunt Agatha is congratulating the victor when Dixie pushes him into her arms. Auntie says she likes masterful men, and we fade out on this happy picture.