Season 1 reaches a fever pitch as the origin story of the Salvatore brothers is finally laid bare. Originally aired on April 29, 2010, this episode serves as a pivotal moment for Elena Gilbert, who discovers the tragic truth behind Stefan and Damon's transformation in 1864. Origin of the Salvatore Vampires

Meanwhile, Stefan and Damon's differing opinions on how to handle the Klaus situation cause tension between the brothers. Their banter and sibling rivalry are always a delight to watch, and their character growth is impressive.