Inspector Zenigata has been taken off the Lupin case due to his inability to capture him, and been replaced with a much more ruthless agent, Keith, who will gladly take Lupin dead if he cannot take him alive. This does not sit well with Zenigata, who has always had a respect for Lupin. He goes against his orders and gives this information to the master thief, giving Lupin and his gang the edge they need to stay alive.