Robyn Adair

After binding Helen to prevent her from stopping the express train to have it await an armed guard, crooks board the train, disable the messenger and dynamite the safe. Helen later takes a short cut in an auto and overtakes the train, but the crooks leap from the speeding train into her car before she can warn the engineer and train crew.

Borden, who nurses a secret grievance against Helen, awaits an opportunity for revenge. The girl telegrapher receives a message which informs her that the freight of which Easton is conductor, is to wait at Workman until the Fast Mail passes.

The Girl Who Doesn't Know is a 1916 American silent film directed by Charles Bartlett.

Hume and Frintz, while riding in a boxcar, see a trunk in the unguarded baggage car of a passenger train. By a daring leap from the freight to the passenger, Hume steals the trunk, throws it into one of the boxcars, and then leaps back. The trunk is missed and the loss reported from Helen's station.

Dawson, a newcomer to the division, meets Helen while the girl is riding in the freight engine with Star, his engineer. Helen ignores the fireman's offensive stares, knowing that trouble would instantly result, if she reported the matter to Star. The following day, Dawson approaches the girl telegrapher and, seizing her in his arms, kisses her.

Tony, a half-breed Mexican is kicked from pillar to post, but he grasps a chance for revenge on society when he peers through the station window and sees Helen, the operator at Lone Point, opening the express company bag containing a valuable shipment to a local rancher.

Confronting Helen at the Lone Point Switch Tower, Denning and his pal imprison the girl in a clothes closet and then steal everything of value. In making their getaway, the crooks accidentally upset a lantern and set the tower afire. Helen, by picking the lock in the door with a hairpin, barely escapes death in the flames.

#61 in the Hazards of Helen series

Disguised as car repairmen, Mealius and Denney get aboard the express car, overpower the express messenger and steal a valuable package being forwarded to Arlington. Helen sees the crooks jumping from the car when it stops for water at Lone Point and gives the alarm.

After robbing the bank at Orlock, Cherry and Newton make their getaway. When on the outskirts of Lone Point, the men cut the telephone wires. Helen, however, learns of the robbery. Never suspecting that the crooks are headed for the station, the girl is taken by surprise when Newton and his pal hold her up.

Bull, Reno and Red make a getaway after holding up the Limited. Helen later sees the men and summons the detectives. The convicts escape from the trap and board a passing freight. Helen also succeeds in getting aboard. The train crew discovers the fugitives. Reno, in charge of the valise containing the loot, throws it into the boxcar ahead.

Detective Strong is warned that an attempt will be made to free the crooks he is taking to the penitentiary. In spite of his vigilance, the prisoners escape when confederates start a gunfight on the train. Strong and his men scour the countryside for the fugitives.

A college boy's prank imperils the life of the railroad president's son who has worked his way up to engineer in his course that starts "from the bottom." Tied to the engine, the son is speeding on a runaway engine toward the Flicker Creek bridge which has been swept away by the floods.

Fearing lest Cameron's horse beat the pony he has plunged on, Tony Dorgan orders one of his men to bribe the stableman to drug the animal. Saratoga Johnny tries to carry out Tony's order, but receives a beating at the hands of the irate Cameron employee.

A warm friendship springs up between Quirkly and Helen, when the fireman saves the girl's life. In his desire to be near Helen, Quirkly obtains a room in the house where the girl telegrapher boards. Badger, a crook, stopping in the same house, learns that Quirkly is in the habit of carrying his savings in a bag suspended from his neck. Entering the room with a confederate, Badger chloroforms the fireman and steals the money. Helen hears the noise of the struggle, but comes too late to apprehend the crooks.

The smugglers seem in a fair way to escape on a stolen engine when Helen, unhitching a team from a nearby wagon, races down the road towards the railroad bridge from which a rope is hanging directly over the track. Standing astride the two speeding horses Helen leaps to the rope, and swaying in mid-air makes a perilous drop to the stolen engine as it dashes past.

The shifting of the dynamite contained in a boxcar causes the latter to be cut from the freight and set out as unsafe. While this is being done, the Jones gang waylays Emerick, a cattleman who has just sold a herd of stock. Detectives are sent after the thieves.

In this episode everything goes wrong. Helen ends up on the rear observation deck of a runaway express train with the door to the inside closed, with the air-brake of the engine damaged, the engine itself full of steam and inaccessible, and the train speeding ahead on the wrong track.

Spang, a tramp telegrapher, is knocked down by a freight car while walking up the siding near Lone Point. Helen witnesses the accident and by quick work saves him from being run over. The girl is later transferred to the shop's office and, due to her influence.

Wharton, trailing Red Leary and his gang, learns that the men intend to wreck the Limited. Curley, a fireman, is implicated. The crooks become aware of Wharton's presence and attack him. Helen comes to the detective's rescue with a revolver and captures one of the men.

John Douglas, a high-society playboy, is a cynic concerning the women of his social set, and has a pictured ideal of the girl of his dreams. Wising to avoid the upcoming social season, he hops a freighter bound for the Orient. It sinks in mid-ocean and he, as the sole survivor, is washed upon a island, where he is rescued by Nia, daughter of the tribal chief, Neto.John is puzzled as all of the tribe are white people, but he learns from the tribal chief they are descendant's of English-origin who also are on the island because of a ship wreck a few hundred years ago.

Sterling and Ella steal a jewelry salesman's sample bag and make their getaway by boarding a passenger train. Word is flashed ahead to Helen, who in turn notifies Bowring, a railroad detective. The train is flagged.

Crossed telephone wires enable Helen to overhear a plot between Joe and Bill, escaped convicts, to join a number of Chinese who are being smuggled into the country in a freight train.