SAS soldier Rion Cross is on manoeuvres in Syria when an ambush turns a routine mission into chaos. However, this is merely the start of Rion’s troubles, as he and his men soon find themselves wandering through a disorientating wilderness. Nothing is as it should be – none of their equipment works, and the landscape has an otherworldly quality. Little does Rion know it, but he and his squad have been thrust through a hole in the fabric of time. They soon find themselves stranded in different eras and locations. But though they are now centuries apart, their fates are linked by a common destiny and deliberate purpose.