The film's credits and pressbook often contained inaccurate information, as they were finished before the film was completed. This led to discrepancies, such as character names not matching the final product. The movie follows two Nazi agents on a train to Rangoon, as they attempt to obtain a map showing the location of Chinese Army munitions. Meanwhile, Kent Taylor and Irene Hervey's characters, reunited after a two-year separation, have little involvement in the plot. Ultimately, a resourceful secretary, played by Fay Helm, exposes the culprits.
Halfway to Shanghai
A thrilling whodunit unfolds on a Shanghai-bound train in the midst of World War II, as a detective pieces together the clues to unravel the mystery of a murder that took place on board.