The Mechanist story arc is divided into six parts, it begins with the murder of Mayor Murphy in Scollay Square. Silver Shroud and Mistress of Mystery kill a pair of thugs responsible for the murder, only to be forced to flee to the Mistress' hideout after Fat Fahey, local crime boss, wounds Shroud in a confused firefight when he happens upon the scene. Although Shroud recovers from his injuries, they are forced to run as Boston Police surrounds the hideout. The duo decides to infiltrate Fat Fahey's operations to learn of his role in the Mayor's death - after all, nobody casually struts through Scollay Square in the middle of the night. Disguising herself as a bar girl, Mistress convinces one of Fahey's gangsters to lead her into his boss' hideout. Once there, she and Shroud try to interrogate the ruffian, only to be attacked by a horde of mobbots.
They emerge victorious after a desperate battle. Fat Fahey turns out to be a robot. The intrepid duo track down his master's location with the help of a damaged mobbot, who craves revenge on his maker. They find the Mechanist at a pier in Boston Harbor, speaking to an army of robots and planning the wholesale destruction of the city. Before they can act, however, they are caught by robots. Suspended over a pit of fire, they are freed by the vengeful mobbot, who gnaws through the rope. The Mechanist attempts to use Silver Shroud's gun against him, but the bullets bounce off his trench coat, mortally wounding the villain. In the closing scene, the Mechanist is revealed to be none other than Mayor Murphy, who faked his own death in order to accomplish his plans, using a robot made to look like Murphy to fool observers. After explaining his motives, he requests medical attention, only for his request to be denied by the Mistress of Mystery, who mocks him for not taking into account Silver Shroud's punishment towards evildoers, much to Murphy's confusion. Silver Shroud then proceeds to kill Murphy with his submachine gun.
When Silver Shroud and Mistress of Mystery are spying on the robot-mobster meeting through the skylight, it is revealed that the creator of these robot-mobsters calls himself the Mechanist, similar to the Fallout 3 and Automatron add-on character, the Mechanist.
The following is based on unverified behind the scenes information and has not been confirmed by canon sources.
The Silver Shroud bears a strong resemblance to 1930s pulp hero "The Shadow." Both characters are stealthy vigilantes with a mysterious demeanor, along with similar costumes, gleaming weaponry (The Shadow's M1911 pistols were named "Silver Heat" in the 1994 film reboot of the character), and catchphrases. The Shadow also has an analog to Shroud's Mistress of Mystery in the form of his confidante, Margo Lane.
The Silver Shroud appears to be based on The Shadow and The Green Hornet. Like the Silver Shroud, they both had popular radio serials and wore a trench coat and fedora.
Silver Shroud's Thompson sub-machine gun may be a tribute to World War II hero Mark Tennant, who was nicknamed the 'Green Hornet' by his fellow soldiers based on the radio serial character.
End of information based on unverified behind the scenes information.
↑Kent Connolly: "After all these years, the Silver Shroud is born again! But... there's just one problem.I'm just not Silver Shroud material. I could be Rhett Reinhart or-or his butler Jarvey Blake. But the Shroud is strong, capable." (Kent Connolly's dialogue)