The Great Train Robbery

Philip's best holidays are those spent in the courtroom. Judges shake his hand, and secretaries feed him apple chips during the trials. It's all because his uncle is a prosecutor.
This time, state prosecutor Lev Yanovich Nosov is facing a really... tough case. The main piece of evidence has mysteriously disappeared. This has left the investigators stumped, but there's no turning back. Now the prosecutor will have a hard time, and he will either force the defendants to confess during the trial or let them go free.
Together with his uncle, Philip will search the train, collect suspicious traces at the crime scene, and create a composite sketch. They will also bring a secret witness into the courtroom and possibly solve the case!