An unexpected turn of events sends Damon scrambling for an alternate plan; Damon's actions force Stefan and Caroline to distract girls at a ball at Whitmore College; Enzo is determined to find out what Valerie is hiding.
A ransomware attack targets the Los Angeles' power grid, resulting in a citywide blackout; the team discovers the ransomware code used was written by Riley years ago.
Ichabod, Abbie and Jenny help Nick Hawley combat his evil childhood caretaker; Captain Irving adjusts to his new reality.
In an effort to save Abbie, Crane forms an unlikely partnership and Jenny confronts a former foe.
Jacob and Margaret go missing while a violent storm rages in Arcadia and knocks out the power. While Bellamy and the Langstons are searching for the pair, a stranger arrives.