From the battlefields of World War I to the rugged Highlands of 18th century Scotland, two fated couples must defy the forces that seek to tear them apart, unfolding in surprising and unforeseen ways in this romantic saga that unfolds across time.

• Harriet Slater
• Jamie Roy
• Hermione Corfield
• Jeremy Irvine
• Tony Curran
• Séamus McLean Ross
• Sam Retford
• Rory Alexander