Determined to protect a young patient who escaped a mysterious cult, a psychiatrist takes the girl in, putting her own family — and life — in danger.

MI6 agent Finola and CIA agent Bryan Beneventi are jointly investigating alien spacecraft debris that has been falling to earth the past 6 months. Some strange phenomena have been occurring wherever the alien spacecraft debris appears.

In their quest to confront the ultimate evil, Percy and his friends battle swarms of mythical creatures to find the mythical Golden Fleece and to stop an ancient evil from rising.