The city of Toronto has been thrown into upheaval by the arrival of radical anarchist Emma Goldman. Amid this political chaos, Benny Citrone of the Royal North-West Mounted Police arrives at Merinda and Jem's flat, requesting assistance in locating his runaway cousin—a man with a deadly talent.

While Merinda eagerly accepts the case, she finds herself constantly butting heads—and hearts—with Benny. Meanwhile, Jem has her hands full with a husband who is determined to keep her out of harm's way.

As Merinda and Jem close in on the danger they've tracked from Toronto to Chicago, they uncover a sinister plot to assassinate presidential candidate Theodore Roosevelt. Will they be able to save the day and resolve the troubles threatening their future happiness before it's too late?