Dr Karl examines Stingray and David, but is stunned to come face to face with Drew Kirk - Libby's dead husband. Mason's forced to fight his own father, and Stingray's starting to get strange cravings.
Bitten by Drew, Susan starts to succumb to the zombie virus - as Karl struggles to save her life. David's enraged that Paul's son killed his family, whilst Toadie makes an emotional journey to find his ex-wife Dee.