For more than ten years, Catherine Langford has watched her father labor over the mysterious ringed device he discovered in the Egyptian desert back in 1928. With answers eluding them both and funding running out, the Langford's situation has become desperate. As the Professor makes plans to move the ring abroad, Catherine struggles to hold on to her life in Cairo, Egypt. But when mysterious figures show up at their facility late one night, new light is shed on the device in a most sinister way.

Cleverly eluding her captors, Catherine recruits the help of two soldiers for a rescue mission into the unknown. Meanwhile, Professor Langford and Brücke come face to face with a powerful new force.