Episode 1
ARCAM sends Rie, a genius professor, to Japan to decipher ancient inscriptions. When she gets kidnapped, a young Spriggan agent comes to the rescue.
Episode 2
ARCAM uncovers a mysterious wooden boat in the snowy Turkish mountains. Yu must face off against a cybernetically enhanced child who holds the key.
Episode 3
Yu must investigate a cursed forest and search for Soma, the mythical nectar of immortality. He teams up with unlikely allies to find a way out.
Episode 4
Yu attempts to retrieve an out-of-place artifact when it gets into the wrong hands. However, the enemy gets away, awakening the deadly object.
Episode 5
Tragedy strikes when Professor Kawahara tries to protect an ancient artifact more potent than a nuclear bomb. In response, a vengeful Yu heads to Egypt.
Episode 6
Yu calls on an old friend to help investigate an eerie island appearing intermittently on an empty ocean. Upon arriving, Yu must face his past.