In Chicago, Klaus uses Gloria the witch to find out why his hybrids aren’t turning out the way he planned and Gloria discovers that Stefan is hiding

A high school girl is torn between two vampire brothers.
Klaus and Stefan arrive in Chicago, where Stefan is reunited with a vampire who hasn’t moved on from her interest in him decades earlier. In a flashback to Chicago in the 1920s, Stefan comes face to face with a shocking chapter from his wild past. After Damon gets a tip on Stefan and Klaus’ whereabouts from Katherine, he and Elena follow the trail. Back in Mystic Falls, Tyler is concerned about Caroline and turns to Sheriff Forbes for help. Caroline was tortured by her father (Bill) who thought that he can help Caroline to fight her urges for blood, but she was rescued by Tyler and Sheriff Forbes. Stefan also learns that Klaus might be running from someone who is hunting him.

A high school girl is torn between two vampire brothers.
Elena and Alaric head to Tennessee, where they believe Klaus is trying to create hybrid slaves, and Damon joins them. Ray and his werewolf pack suffer horribly after Klaus tries to turn them into hybrids.