Dave Marks

The Canadians have discovered a valuable substance called Compound X, which can cure infantile paralysis. When a country at war with Canada learns that Compound X also contains magnetic properties that could aid them in their warfare against the British, they send agents to infiltrate Canada and steal a large quantity of the substance. It's up to Sgt. King (Allan Lane) and his Mounties to track down the agents and put an end to their scheme.

After she is killed in a wave of small town hysteria, Mercy Hawkins is resurrected by a mysterious healer who gives her the power to seek justice against her attackers.