Traveling saleswoman Mary Marbury thrashes a masher on a train when he tries to kiss a young girl in a tunnel.

Mirandy, the daughter of a laundress, scrubs floors in an opera house. Before she can marry the handsome organist for the opera, she decides she must improve her social standing.

Douglas MacLean stars as The Young Thief, who falls in love with The Girl, played by Sue Carol. Alas, the Girl has been sold into the harem of The Wazir (Albert Prisco), forcing the Thief to sneak into the palace to rescue her.

A German-American father, loyal to his new U.S. home, finds himself on opposite sides with his son in the wartime conflict between Germany and America. The son becomes involved with German agents plotting against U.S., and the father must decide between his son and his adopted homeland.

Let-It-Rain Riley (MacLean) is a devil-may-care Marine sergeant who falls in love with a girl (Shirley Mason) who he assumes to be rich. His rival for the girl's affection is his pal, Kelly (Wade Boteler). The guys find out that the object of their affections is but a modest switchboard operator but she proves to be invaluable when she deciphers a code and discovers that a mail train is about to be robbed.

Harry Elrod takes a job as a bellboy when he is disinherited by his uncle and fails in his efforts to elope with actress Kitty Clyde. He causes so much confusion that Uncle Elrod buys the hotel so that he may fire Harry. But Harry induces the other employees to strike until Uncle Elrod consents to Harry's marriage to Kitty.

Johnny Hardwick (Douglas MacLean) is the owner of the fastest horse in the next race. Although it's almost guaranteed that he will win big, Hardwick ruins his chance by saving a little girl who has run out onto the track. The child's father shows his gratitude later on when he offers Hardwick a job as a clerk in his hotel -- Hardwick has been forced to flee after a fight in a roadhouse.

Passing Through is a 1921 American silent comedy drama film, directed by William A. Seiter and written by Agnes Christine Johnston, and Joseph F. Poland.

A woman's faith in her husband is put to the test when she discovers a photograph of another woman.

On the eve of his wedding, businessman Alan Boyd gets a telegram notifying him that his "bride" has fallen in love with another man and eloped with him. Announcing that he is through with women, an hour he meets pretty Helen Raynor, who takes to him (and is also his business rival's daughter). Helen's mother, though, doesn't take to Alan at all. In addition, Schuyler Van Loon, who is also after Helen, comes up with a scheme to embarrass Alan in Helen's eyes and ruin his reputation in the bargain--he comes up with a "baby" he claims is Alan's illegitimate son.

Mistaken for a famous jockey, a young man uses it to his advantage -- until he actually has to race a horse.

A young girl, stifling on her father's backwoods farm, is reinvigorated by the arrival of an army regiment, come to train in the area.

A writer, looking for some peace and quiet in order to finish a novel, takes a room at the Baldpate Inn. However, peace and quiet are the last things he gets, as there are some very strange goings-on at the establishment.

Chief of the German secret service in Paris has been ordered to secure for his government the service of the most clever and beautiful woman obtainable.

Jimmie Hastings falls wildly in love with Marjorie Brand, and he and his pal Dick Warren follow the two on a trip around the world. He meets her in Africa and she invites him on a hunt for "cats". He accepts, but finds out that the "cats" aren't exactly the kinds of cats he had in mind.

An uneducated young girl becomes suddenly wealthy and hires the disinherited son of an upper-class family to tutor her in the ways of society.

When good-natured James Henry MacTavish comes into an inheritance, he travels East to claim it with the determination that he will "scatter sunshine" along the way. But MacTavish almost immediately lands himself in hot water.

Three young men, struggling to find their next meal, encounter a young lady with an injured ankle. One of the men is a doctor, who maintains a charade of success with his wealthy uncle, in which the uncle believes the young man to be well-off and married to a (fictitious) wife named Mary Jane Smith. The young doctor falls in love with the girl of the injured ankle and discovers that her name is Mary Jane Smith.

A Trip Through the World's Greatest Motion Picture Studios (1920) presents a fascinating glimpse into the Thomas H. Ince studios at Culver City.

Mary's kid brother needs an operation and, in order to pay for it, Mary goes to a Hollywood studio and applies for a job as an actress. Mary is given a job as a waitress in the commissary, and gets to meet 40 actors, actresses and directors, none of whom tip big enough to enable Mary to earn enough money to pay for an operation. Will Mary become an actress and make some big money?