is the fourth episode of the second season of the supernatural drama series The Vampire Diaries , which first aired on September 30, 2010 . Episode Overview
To protect themselves from Katherine’s threats, Stefan and Elena stage a public breakup at the Mystic Grill . They later realize that Caroline Forbes is being forced by Katherine to spy on them. Production Credits Director: Rob Hardy Writers: Caroline Dries
Despite Stefan’s interrogation, Katherine insists she returned specifically for him.
Damon attempts to kill Mason Lockwood using silver, only to discover that metal does not kill werewolves. This failed attempt turns Mason into a dangerous enemy.