Desc: Let Katie Do It: Directed by Chester M. Franklin, Sidney Franklin. With Jane Grey, Tully Marshall, Luray Huntley, Charles West. Katie Standish is the family drudge on a New England farm. Her elder sister "enjoys" poor health and her mother sees to it that Katie not only does her own work but that of the weak or lazy Priscilla. Oliver Putnam, a husky young farmer lad, comes courting Katie, but her parents interfere so much that he is discouraged. Oliver finally goes to Mexico with Ben Standish, uncle of Katie and Priscilla, who owns a valuable mine there. Priscilla marries Caleb Adams, a young man who bought a farm adjoining that of Standish. Father and Mother Standish die and Katie goes to live with her sister. Soon she is doing all the housework, and as Priscilla rapidly becomes the mother of seven, each and every one of them is turned over to Katie's care. Then Priscilla and her husband are killed by an express train while driving to the city. Then Katie must teach school to help keep the wolf from the door. She writes to her uncle, telling of her sister's death and how the care of the children had fallen to her. The uncle invites her to bring the motherless brood with her and they can all make their home with him in Mexico. Oliver Putnam is expecting Katie, but the information about the children has been withheld from him. He is overjoyed when he sees Katie step off the train, but is flabbergasted when he sees the many children--only the first time the children get between Oliver and Katie, and Oliver comes to resent them. He sees two of them fussing and spanks one of them; Katie catches this and gives him a scathing rebuke. Then she happens to hear him tell Dan that he hates children; this lands him squarely in her bad graces. Uncle Ben likes the youngsters. He shows them how a series of guns in their little home could be discharged at once by pulling a lever and how a mine around the house could be discharged in a similar manner. He is careful to lock the room where the weapons of destruction are placed, but one of the children finds out where he has hidden the key. While Katie and Oliver are away on an errand of mercy, Mexicans attack the little house. The children are all there but one. The missing one happens to be outside and escapes to the road, where he is saved by a cowboy who goes after help. Meanwhile the children defend themselves by discharging the guns and firing the mines as their uncle had shown them. Katie and Oliver have a desperate fight when they are attacked by another band of Mexicans, but hold them off in a deserted cabin, till the cowboys rescue them. Oliver can't help admiring the brave way in which the children have defended the house, and is grateful also for the fact that the silver under the floor has been saved from the Mexicans. So Oliver and Katie forget their differences and make a home for the children in a mansion in the United States.