| Director | Hugh Wilson |
|---|---|
| Genre | comedy film, crime film |
| Runtime | 74 min |
| Country | United States |
| Budget | $22 million |
| Box office | $10 million |
The young versions of Dudley Do-Right, Nell Fenwick, and Snidely Whiplash gather at a lake with Dudley's pet horse "Horse", where they talk of their aspirations. Dudley believes he is destined to be a Royal Canadian Mounted Police officer (Mountie), and Nell wishes to see the world, while Snidely wishes to be a villain.
Years later, all three have fulfilled their supposed destinies. Dudley is now a Mountie upholding the law in Semi-Happy Valley, but always adheres to the rules and is frequently oblivious to even the most obvious of things; and Snidely has become an infamous bank robber. After Snidely and his gang rob a bank of its money and gold, Snidely tricks his entire gang into believing he has fled with all the gold to the Sudan and pursuing him. Snidely subsequently salts local lakes with the stolen gold. Dudley catches him in the act, but Snidely fools him into thinking he is vampire hunting, and uses a similar tactic to scare away Horse. Nell returns from her world tour and reunites with Dudley, and the two spend the night attending a festival at a settlement belonging to the nearby Kumquat tribe.
Meanwhile, Prospector Kim J. Darling, the poorest man in Semi-Happy Valley, stumbles across the gold in the river and is made into a media sensation by Snidely. The subsequent gold rush boosts Snidely's popularity, and after foreclosing many local mortgages, he quickly takes control of the town, renaming it "Whiplash City". Eventually, Snidely's men return from the Sudan to kill him for his deceit, but Snidely convinces them otherwise by offering them lives of luxury in his new town. A suspicious Dudley confronts Snidely, who laughs him off and snatches Nell from him. Snidely sends his second-in-command, Homer, to assassinate Dudley with a bomb, but Dudley is absent when the bomb explodes. Nell's father Inspector Fenwick, who is in good favor with Snidely, discovers Dudley's feud with Snidely and discharges Dudley from the Mounties. Dudley falls into a depression and wanders across the town until he runs into a drunken Kim, who offers him shelter at his cave in the woods. Darling tells Dudley of Snidely's plans and newfound popularity and takes him to see a Gala Ball in Snidely's honor. Despite Kim's warning not to challenge Snidely due to his loss of favor, Dudley unsuccessfully attempts to take Nell back from Snidely.
Feeling sympathy for Dudley, Kim subjects him to a harsh training regimen to make him a more formidable opponent and take back Semi-Valley from Snidely. Dudley's first act is to intimidate one of Snidely's men into telling him the next gold shipment. Disguised as a motorbike-driving vigilante, Dudley sabotages the shipment and leaves his mark on Snidely's workshop as well as his favorite golf course. Snidely, unaware that Dudley lost his job, is offended by this and more so with his men's incompetence to stop him, believing Dudley is enjoying the perks of being the villain. At the end of training, Kim leaves to find his family and thanks Dudley for his friendship. Dudley then uses his new training to win Nell back from Snidely, who swears revenge. At a nighttime town meeting, Snidely attempts to rally the people against Dudley, but it falls on deaf ears. The populace has grown weary of Snidely and more respectful of Dudley in his efforts to retake their town.
Snidely ultimately discovers that Dudley and Nell are at another festival with the Kumquat tribe and leads a full-scale attack on them. The Kumquats flee for their lives until Horse reappears and helps Dudley sabotage Snidely's tanks by making Snidely and Homer accidentally shoot and incapacitate each other. A cavalry of Mounties appears and arrests Snidely and his men. Kim also arrives with his wife, the Prime Minister of Canada, and is reunited with Dudley, revealing that they called out the cavalry. Inspector Fenwick reinstates Dudley in the Mounties, and Dudley and Nell settle down in Dudley's rebuilt house, sharing a kiss.