THE VAMPIRE DIARIES — “Founder’s Day” (8:00/7c)

Founder’s Day has finally arrived, and everyone is busy with last-minute preparations for floats and fireworks. Although Damon (Ian Somerhalder) and Alaric (Matt Davis) do their best to stop him, Johnathan Gilbert (guest star David Anders) sets a plan in motion that brings Founder’s Day to an end amid chaos, destruction and death.

The showdown between good and evil is at hand. With the Apocalypse looming, Sam (Jared Padalecki) and Dean (Jensen Ackles) realize they are out of options and make heart-breaking decisions that will change their lives forever. A beloved character faces death.