S5, E12: When Enzo (recurring guest star Michael Malarkey) brings Damon a gruesome present and insists that they bond by committing an act of revenge, Damon makes an effort to do the honorable thing. After finding himself in awkward and confusing conversations with Nadia (recurring guest star Olga Fonda), Matt impulsively decides to throw a party, where Caroline makes a stunning confession to Elena, then has to face the consequence of her actions with Stefan and Tyler. Aaron (recurring guest star Shaun Sipos) does his best to make amends for his family’s past misdeeds and start a new life for himself. Finally, Elena suddenly finds herself in a life-threatening situation with only minutes to figure out how to save herself.