After wiping the final anachronism from time, the Legends find themselves in unfamiliar territory with the Time Bureau in the season four premiere. All that changes when John Constantine leads the team to Woodstock in search of a new magical threat. Thinking he knows how to defeat the new threat, Constantine will need the help of the team and their special klepto talents to help with his spell. Meanwhile, Nate and Mick go on an adventure, leaving Nate to face someone from his past.