While Stefan struggles to control his new situation of blood lust after feeding off Elena's blood to heal, she and Jeremy are surprised by a visit from their uncle, John Gilbert, who arrives in Mystic Falls with an agenda. Meanwhile, Alaric has an awkward talk with Elena about his wife Isobel. At a Founder's Day event, Stefan displays a rare party attitude and Damon's attempt to find out why Uncle John has returned to town takes an ugly turn.
