Synopsis by Hal Erickson
Hoping to purge himself of the Magogs that have infested his body, Harper (Gordon Michael Woolvett) conducts a dangerous experiment. Things go awry, and as a result, the past, present, and future collide, resulting in permanent changes within both Andromeda and the crew -- as good an excuse as any to test out a few cosmetic and costume alterations amongst the series regulars. This episode represents the final Andromeda appearance by Brent Stait (Rev Bem), who was forced to leave the show because he'd developed an allergy to his facial makeup (though the script comes up with a more dramatically compelling reason for his departure). "Ouroboros" first aired on January 28, 2002.