The day shift was leaving the entrance gates at the war plant, and as they crowded into the street, they were suddenly thrown into a state of excitement when an explosion rocked the plant behind them! Mike Axford went to report on the case, and whilst he was there he found a key on the street just outside the war plant. It was for a lock box at Union Station, and he wanted to see who it belonged to. Maybe there would be a finder's reward. Or maybe it could be something more sinister...