The Brakebills students struggle to deal with the aftermath of a catastrophe that befalls the university. Back in Brooklyn, Julia makes her first foray into the mysterious world of Hedge Witches.

Alice ends up risking everything to discover the truth behind her brother's disappearance. Quentin and Julia are involved in a volatile reunion.

Brakebills is thrown into chaos when Penny is violently attacked by someone who was considered a friend. Quentin tries to find a connection to the Beast. Julia considers giving up magic for good after entering a rehab facility.

Quentin and the others learn battle magic and prepare for a showdown in Fillory. Julia and Kady take on a mission with the Free Traders.

Quentin, Alice, Penny and Margo seek a new weapon; Eliot struggles with being king. Julia and The Beast find an unexpected ally.