An unexpected explosion hits the antiques section of a London museum. That collection was very important to Lady Kara Kensington, so she teams up with the museum's curator to discover the cause of the tragedy. They soon learn that the explosion may be linked to Ubar, a lost city beneath the Arabian desert. The two women join forces with a desert guide and an American ex navy SEAL to discover the mystery surrounding this city and an ancient power that lives and breathes. Meanwhile, people are dying because various agencies wish to harness this secret power and use it as their own.