Mayor Southwick refuses to sign certain franchise bills which he believes to be dishonest, and when the political boss unexpectedly finds in his hands the means of coercing his superior, he determines to make the most of his opportunity. The mayor's daughter Helen, straying away from an automobile party, gets lost in the woods and comes to the house where the boss holds his secret conferences, and he orders his housekeeper to guard her while he motors to the city. His plan is to keep her until her father has signed the bills. Meanwhile, the housekeeper wanders away to a neighbor's, leaving little Helen locked in an upper room. But the child's devoted collie Shep, who sorely misses her, is already tracking her and reaches the house just in time to rescue her from the fire that broke out while she was locked in alone. He alarms the firemen, climbs a ladder to Helen's room, and jumping through a skylight, leads the rubber-coats to where the child is. With little Helen safe, Shep leaps from the top story of the burning house into the fire net.
—Moving Picture World synopsis