Season 0 of Highlander: The Series premiered on 27 april 2003.

Season 1 of Highlander: The Series premiered on 3 oktober 1992.

The adventures of Duncan MacLeod, a 400-year-old Immortal who can only die if he is beheaded; conflict inevitably finds him because he is part of the Game, an ongoing battle in which all Immortals have to fight and behead each other until only one is left.

Season 2 of Highlander: The Series premiered on 2 oktober 1993.

The series continues to follow the adventures of Duncan MacLeod, a 400-year-old Immortal who can only die if he is beheaded. MacLeod is involved in the Game, an ongoing battle during which all Immortals have to behead each other until only one is left.

Season 3 of Highlander: The Series premiered on 1 oktober 1994.

Season 4 of Highlander: The Series premiered on 1 oktober 1995.

Season 5 of Highlander: The Series premiered on 23 september 1996.

Season 6 of Highlander: The Series premiered on 4 oktober 1997.