As described in the film magazine Exhibitors Herald,[4] little Marie Farrell (Axzelle), through the carelessness of her nurse, is lost and believed drowned.
There is a stormy meeting between the bridal pair and the parents, during which the captain sees a portrait of Marie as a baby and, realizing the truth, tells the story of her life.
The Gulf Between was filmed on location in Jacksonville, Florida in 1917 by the Technicolor Motion Picture Corporation, using its two-color "System 1", in which, by means of a prism beam splitter, two consecutive frames of a single strip of black-and-white film were photographed simultaneously, one behind a red filter and the other behind a green filter.
Because of the technical problems in keeping the red and green images aligned by prism during projection, it was the only motion picture made in Technicolor's System 1.
Photoplay magazine complained that all colors were reduced into terms of reds and greens, and that "the story is dull, trite, and drawn out interminably.