Know Thy Enemy
- Episode aired Apr 7, 2011
- TV-14
- 42m
Isobel unexpectedly returns, leaving Jenna devastated. Bonnie attempts to harness her ancestors' power. Stefan and Damon realise that they have a new weapon.Isobel unexpectedly returns, leaving Jenna devastated. Bonnie attempts to harness her ancestors' power. Stefan and Damon realise that they have a new weapon.Isobel unexpectedly returns, leaving Jenna devastated. Bonnie attempts to harness her ancestors' power. Stefan and Damon realise that they have a new weapon.