The Best Seasons of Citadel

Every season of Citadel ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Citadel!

What if you lost your memory? What if a spy didn’t know they were a spy? Years ago, the top agents of Citadel, Mason Kane and Nadia Sinh, had their minds wiped. But, they’re called back to action as sinister forces emerge from the past. With the help of spymaster Bernard Orlick, these former lovers must remember the past to save the future.