Riley, a young Victorian orphan, is apprenticed to Albert Garrick, a magician turned assassin. When their latest assignment goes wrong, Riley is accidentally sent forward in time to modern-day London. Pursued by Garrick, he must navigate a strange world filled with technology, danger, and the FBI’s Witness Anonymous Relocation Program (W.A.R.P.). Together with FBI agent Chevie Savano, Riley tries to stop Garrick’s sinister plans, leading to a fast-paced adventure across time.