McLoud bought a Celtic bracelet once given to the love of his mortal life and after her tragic death he buried it with her. He returns to Glen Finnin to return the bracelet to her grave and learns of several gruesome ritualistic killings based around the one immortal who killed Mac's father. Naturally Mac must get to the bottom of the killings and keep his head in the process.

When masked thugs try to take Amanda's head in her sleep and steal the crystal given to her long ago by Rebecca, Amanda and MacLeod investigate. They discover the the crystal may be part of the Methuselah Stone, a mystic talisman said to impart eternal life and invulnerability to the wearer and that the person willing to kill Amanda to get it may be -- Methos?

One by one, Kronos is putting the Four Horsemen back together. Once they struck fear in the hearts of men with sword and axe. Today, their weapons of destruction are different, but their goal is the same: to bring mankind what it fears most, the Apocalypse. Only Duncan MacLeod stands between them and the end of the world.

Lord Byron, the brilliant Romantic poet, is alive and well and living the decadent life of a rock star. He lives life way over the edge and has taken some promising young musicians over the edge with him. When following in Byron's footsteps tragically ends the life of Dawson's protege, MacLeod is faced with a decision -- is the beauty and genius that is Byron worth the cost?