Toby Domzaski, Jim’s best friend, accidentally snaps the train’s brakes, causing the train to be unable to stop, and complicating a plan to use 'trifurcate radiation' to render the wizards powerless. Jim is wounded in a battle against Bellroc, the leader of the Order. & his girlfriend Claire Nunez accompany the two.
Master Wizard Douxie Casperan and former Arcane Order member Nari are ambushed by the arrival of the Order in a moving subway train, while former Trollhunter Jim Lake Jr.