After returning to the ministry, Blake, Pradier and Labrousse intercept a new coded message: a large fog will cover the entire Western Europe in two days, perfect weather for an invasion. The DST therefore has two days to find Olrik.
Upon returning to their duties, Blake, Pradier, and Labrousse intercepted a new coded message: a dense fog would soon cover all of Western Europe, providing ideal conditions for a military operation. The DST then had only 48 hours to find Olrik.