Andrews, the telegrapher at Flint, a lonely station, receives a message ordering the operator at Crow's Landing to hold Fast Freight 3205 until the East Bound Passenger passes. Before Andrews can relay the message, he is stricken with fever. Annie, his wife, discovers Andrew's condition and helps him to their home near the station. The girl takes her husband's place at the key. She discovers the message which should have been relayed. Horrified, Annie desperately calls up Crow's Landing. Jamison, the operator at that station, is conversing with the crew of Fast Freight 3205 and does not hear the clicking of his receiver. Later, the freight pulls out. Delirious, Andrews knocks over the kitchen stove, setting fire to the house. Annie realizes her husband's peril. Torn between fear for his safety and duty's call, the girl hesitates. Deciding that the safety of the passengers demands that she stick by her post, Annie continues in her desperate efforts to raise Crow's Landing. Jamison finally receives the message. Its terrible import is revealed to him. The man sees an electric work-car on the siding. He commandeers it and dashes in pursuit of the freight. Jamison having received her message, Annie runs over to the house. Dashing through the flames, she rescues her husband. At the same time, Jamison overhauls the freight and gives warning. The freight backs up at full speed and reaches the siding just as the East Bound Passenger flashes by. Word of Annie's heroism reaches the ears of the president of the road. In recognition of her heroism, the officials build a house and present it to Andrews and Annie, to replace the one which was destroyed.