John and Jeremy are almost dead when Elena arrives at home. Anna's blood saves Jeremy and the 911 brings John to the hospital. Stefan uses his blood to save John and tells him to leave Mystic Fall. Damon uses his blood to heal Caroline and he discovers that Katherine has returned to the town. Tyler is comforted by his mysterious uncle Mason, who is the black sheep of his family. Damon is rejected by Katherine and Elena and revenges against Jeremy. Katherine begins her game with Caroline, leaving a dark message to the Salvatore brothers.