Picking up where the first season left off, Elena arrives home to discover the fates of Uncle John and Jeremy. Jeremy has not transitioned into a vampire because he did not take enough drugs to die. Damon, Bonnie, and Elena agree that Caroline needs Damon's blood to survive. Stefan realizes that Katherine has returned and is impersonating Elena. Tyler is surprised when his uncle, Mason Lockwood, arrives in town to console him. Katherine and Damon nearly sleep together, but Katherine tells Damon