With time running out, Garner, Lindsay and Malcolm race against the clock to discover the truth behind Stanley’s disappearance. Meanwhile Stanley is faced with a code more difficult than he’s ever faced before. What secrets does it hold? And how is it connected to Garner’s past? And more importantly, what will they do with Stanley once it’s cracked? It’s all in a day’s work for the eltie Cryptanalysis Unit of the FBI.