The Lucky Dog was the first film to include both members of the famous comedy duo of Stan Laurel and Oliver Hardy, later known as Laurel and Hardy and is the first occasion that they worked together. Though they appear in scenes together, they play independent of each other and not as the comedic team that they would later become. The film was shot as two reels, but some versions end abruptly after the first reel where Stan is robbed by Ollie
A hapless hero (Laurel), who after being thrown out onto the street for not paying his rent, is befriended by a stray dog. The dog and young man then bump into a robber (Hardy) who is holding someone up. The bandit, who in the process has accidentally placed his victim’s money into the young man’s back pocket, turns from his first victim, who runs off, to rob Stan. The robber then steals the money he had already stolen from the bemused young man who had thought he was broke.
In this lobby card scene, Stan Laurel (left), is attacked by Oliver Hardy (above) as Jack Lloyd spots that Stan’s faithful dog has retrieved Oliver’s lighted stick of dynamite.
The young man and the dog escape and the dog makes friends with a poodle. The poodle’s lady owner (Florence Gillet) persuades the young man to enter his dog into the local dog show. When his entry is refused, the young man sneaks in anyway, but is quickly thrown out, followed by all the dogs in the show. The young man spots the poodle’s owner outside looking for her dog and offers his dog in its place. She accepts and in turn offers him a lift to her home. This scene is witnessed by her jealous boyfriend, who happens to bump into the bandit and together the two plot their revenge on the young man.
At the lady’s house, the young man is introduced to the boyfriend and the bandit, in disguise as the Count de Chease of Switzerland. The boyfriend proposes and is refused while the bandit attempts to shoot the young man only to have the gun jam. The boyfriend chases the lady around the house while the bandit tries to blow up the young man with a stick of dynamite. The dog comes to the rescue, chasing the bandit and the boyfriend into the garden with the dynamite and leaving them to be blown up.