After twenty years of peace, Camelot stands at the height of its glory. But secrets are growing inside the castle, and Mordred's ambition waits quietly for its moment. So begins the slow, sorrowful fall of the fairest kingdom that ever was.

A young knight with the purest of hearts arrives at Camelot: Sir Galahad, son of Lancelot. Only he may sit in the Perilous Seat, and it falls to him, with Percival and Bors at his side, to complete the quest for the Holy Grail.

Raised by the Lady of the Lake in a kingdom beneath the waters, Lancelot arrives at Camelot as an unknown knight in white armor. This is the story of the greatest knight of the Round Table, and of what truly made him great.