Plot summary
Elena completes her transformation into a vampire. Pastor Young takes over the Founders Council and kidnaps Caroline and Rebekah. Klaus leaves Tyler's body and is confronted by a hurt Rebekah, who destroys the bags of Elena's blood, making it impossible for Klaus to make more hybrids. Stefan gives Elena a daylight ring created by Bonnie. Pastor Young calls a meeting of the secret council on his farm and starts a gas leak in his kitchen and says "we are the beginning" before striking his lighter in the air and blowing everyone up.
Credits
Adapted from Wikipedia contributors, The Vampire Diaries season 4. HTML formatting and reference markers removed.