Elena wakes up the morning of her 18th birthday. She has spent the summer trying to track down Stefan. Damon has been spending time with Andie, also trying to track down Stefan. Damon and Elena have an awkward post-kiss encounter. Elena explains that the kiss was a goodbye kiss since she thought he was going to die.
Caroline and Tyler spent the entire summer hanging out, but not officially dating. They develop their relationship throughout the episode and end up in bed together. It turns out that Stefan has remorse for the people he's killed, and attempts to reassemble their bodies. He compels Andie to send a message to Damon - to stop trying to look for him - and then compels her to kill herself.
Stephan calls Elena before her birthday ends, but can't get himself to say anything. No words are needed, and Elena knows it's Stephan on the line. She tells him she loves him. The episode ends with Caroline getting shot by Mrs. Lockwood.