The Highlander universe is built on a series of rules that govern the actions of its characters. They've been built over time and even changed over time, as the franchise has developed through the Highlander movies with Connor MacLeod and Highlander: The Series with Duncan MacLeod.

HIGHLANDER RULE 1: There Can Be Only One
HIGHLANDER RULE 2: Die To Live
HIGHLANDER RULE 3: Take his Head
HIGHLANDER RULE 4: The Quickening
HIGHLANDER RULE 5: The Gathering
HIGHLANDER RULE 6: Holy Ground
HIGHLANDER RULE 7: The Buzz
HIGHLANDER RULE 8: One On One
HIGHLANDER RULE 9: No Witnesses
HIGHLANDER RULE 10: No Children
HIGHLANDER RULE 11: The Water Problem

More On Henry Cavill's Highlander Reboot: https://www.giantfreakinrobot.com/ent...

Full Highlander: The Series Opening (it's awesome!) --   • Highlander TV Series - Season 4 Intro