Episode 53 of "Andromeda"
s03e09 And Your Heart Will Fly Away...

Tyr receives a communication from a human on an abandoned planet and leaves to meet her. As he does, a mad scientist boards the Andromeda using dark matter ninjas. After beating them, the man introduces himself. He loves the woman Tyr is with and wants to kill her, if he cant have her, nobody can. After saving her, he forgives her and lets her live. The episode ends with Tyr revealing that she is actually a Neitzian, the last female from Codiac, Tyrs pride. He says that he wants them to start a new Codiac pride but she refuses and Tyr leaves.