 Kate s father, Trevor Lockley, gets involved in a demon drug smuggling operation and he s soon in over his head. When a demon high on drugs attacks the subway, Angel begins investigating and quickly discovers Trevor s shady dealings. He tries to warn Trevor, but it s too late. When Trevor is attacked, Kate blames Angel for not doing more. Meanwhile, through flash backs, Angel s own father is introduced, Angel s past as a human is shown and Angelus is born.