Ganon has kidnapped Link and stolen the seven celestial signs, creating an "Age of Darkness" in the kingdom of Tolemac. Princess Zelda learns from the court astrologer Gaspra (played by actor Mark Andrade) that she must collect the signs to defeat Ganon and save Link.
Unlike the other two games, Zelda's Adventure was created by Viridis, an entirely different company, with a change in style and gameplay. Gameplay is very much like the original The Legend of Zelda and The Legend of Zelda: A Link to the Past, with an overworld that allows access to individual dungeons. The FMV sequences which explain the plot are live action instead of animated.