Thomas Carrigan

Two young men, one rich, one middle class, both in love with the same woman, become US Air Corps fighter pilots and, eventually, heroic flying aces during World War I. Devoted best friends, their mutual love of the girl eventually threatens their bond. Meanwhile, a hometown girl who's the lovestruck lifelong next door neighbor of one of them pines away.

Mary Lane and her cousin Claiborne want to sell some land left to them by their family. Real-estate agent Roland Manning falls in love with her, and prepares a deal that will make money for both of them. However, shady land speculator Wade Dempster plots to get Claiborne drunk and swindle him out of the land. In order to get the honest Roland out of the way, he has him framed for a murder that Wade himself committed. Things look hopeless for Roland.

Corrupt politicians resort to murder and blackmail when a young boy accidentally witnesses them taking payoffs.

Edward Campbell, known as Checkers, is a racetrack tout. Determined to reform himself, he foreswears gambling, but must take it up once more in order to save someone he loves from disaster.

Sam Long leaves his invalid wife to seek work in a neighboring town. He is unsuccessful in his quest and being penniless, and his wife in need of food and medicine, he steals a wallet of money from Dr. Lane. While returning home he loses the wallet on the road. It is found by some of the boys, who return it to the doctor.

A group of air mail pilots risk their lives to deliver important mail through bad weather conditions.

A Nick Carter mystery

When Tom Drogan drunken, wild ways, cause his mother's death, his sister Nell swears to protect and reform him. On the pretext of paying back a gambling debt, Tom brings "Kid" Hogan to the house, but ends up shooting him in the forearm. Dan Hogan, Kid's brother who is a policeman, rushes to the scene and catches Tom running away. To avoid arrest, Tom tells Dan that he fired at Kid for molesting Nell, and in the face of scandal, Dan and Kid back down. As revenge, Kid enlists Mamie, his girlfriend, to force Nell into a compromising situation with a man on a street corner. Conveniently placed, Dan arrests Nell for solicitation, but Frank Roberts, her boyfriend, arrives and extricates her. When Tom hears of the plot, he confronts Kid in a dance hall and soon a raging gun battle breaks out in which Kid is killed. Badly wounded, Tom seeks refuge with Nell, who prepares to protect him with his gun. As the police break down her door, Tom dies.