Immortal Canus is using attack dogs to injure Immortals so he can easily take their heads, and Duncan is his next target. Meanwhile, Richie encounters the young man who killed Tessa and made him Immortal, and demands vengeance. In flashback to 1785 England, Canus has his dogs hunting a young boy and McLeod kills one.
- Duncan has to fight an immortal named Ganus who uses dogs to hunt immortals and weaken them before he kills them. Richie finds the killer who shot Tessa and himself.