Brass Bancroft and his sidekick Gabby Watters are recruited onto the secret service and go undercover to crack a ruthless gang that smuggles illegal aliens.

A mad scientist attempts to rule the world by creating various elaborate inventions.

A reporter gets himself sent to prison to expose a mobster.

A two-fisted Canadian Mountie leads lawmen in pursuit of the thieves who stole an Edmonton-bound freighter’s cargo.