A crooked mine owner attempts to hijack his rival's shipment of ore, but Helen foils his plot by jumping onto the engine and pulling the throttle wide open, eventually exposing the unscrupulous villain.
#1The Flying Freight's Captive
#2The Stolen Engine#3The Black Diamond Express#4The Girl at the Throttle#5The Escape on the Limited#6The Plot at the Railroad Cut
#7Helen's Sacrifice
You’re hereThe Girl Engineer#9A Boy at the Throttle#10The Girl and the Special#11The Girl Telegrapher's Peril#12The Girl at Lone Point#13A Race for a Crossing#14A Deed of Daring#15The Open Drawbridge#16Train Order Number Forty-Five
#17A Railroader's Bravery#18The Limited's Peril#19The Night Operator at Buxton#20The Fast Mail's Danger
#21Nerves of Steel#22The Death Train#23A Wild Ride#24The Red Signal#25The Railroad Raiders of '62
#26The Leap from the Water Tower#27The Hazards of Helen: Episode13, The Escape on the Fast Freight
#28The Wrong Train Order#29The Tramp Telegrapher#30The Broken Rail
#31The Pay Train#32A Girl's Grit#33Danger Ahead!#34Crossed Wires#35The Human Chain#36The Hazards of Helen Ep26: The Wild Engine
#37In Danger's Path#38The Midnight Limited#39The Substitute Fireman#40The Box Car Trap#41A Perilous Chance#42The Runaway Boxcar#43The Girl on the Bridge#44The Dynamite Train#45The Little Engineer#46The Fate of Number One#47The Rescue of the Brakeman's Children#48The Watertank Plot#49The Girl on the Trestle#50The Fiend at the Throttle#51The Broken Circuit#52A Test of Courage#53A Mile a Minute#54A Matter of Seconds#55The Broken Train#56Near Eternity#57The Girl on the Engine#58A Life in the Balance#59The Engineer's Peril
#60The Race for a Siding#61The Haunted Station#62The Girl Who Dared#63When Seconds Count#64To Save the Special
#65One Chance in a Hundred#66Ablaze on the Rails#67The Lost Messenger#68The Record Run#69The Girl Telegrapher's Nerve#70The Open Track#71A Race with Death#72The Runaway Sleeper#73At Danger's Call#74The Broken Brake#75The Engineer's Honor#76At the Risk of Her Life#77The Vanishing Box Car#78Defying Death#79The Forgotten Train Order#80The Gate of Death#81The Secret of the Box Car
#82A Plunge from the Sky#83The Hoodoo of Division B#84The Treasure Train#85The Bridge of Danger#86The Trail of Danger#87To Save the Road#88A Race for a Life#89The Detective's Peril#90With the Aid of the Wrecker#91The Perilous Swing#92Tapped Wires#93The Capture of Red Stanley#94Hurled Through the Drawbridge#95A Race Through the Air
#96In Death's Pathway#97A Daring Chance#98The Broken Wire#99The Lone Point Mystery#100The Human Telegram#101The Spiked Switch#102The Lineman's Peril#103The Peril of the Rails#104The Blocked Track#105The Mysterious Cipher#106The Switchman's Story#107A Mystery of the Rails#108The Trial Run#109The Death Swing#110The Trapping of 'Peeler' White#111The Governor's Special
#112The Midnight Express#113The Wrecked Station
#114The Hazards of Helen#115The Death Siding#116The Fireman's Nemesis#117The Sidetracked Sleeper#118The Prima Donna's Special#119The Mogul Mountain Mystery#120The Railroad Claim Intrigue