Mr. Monk Gets Cabin Fever

S3, E12: When Monk witnesses a Chinese gang murder, he becomes a federal witness under the protective custody of old friend Agent Grooms. Grooms takes Monk, along with Natalie and Captain Stottlemeyer, to a remote FBI cabin in the woods. On the way to the hideaway, they meet Martin and Kathy Willowby, who live in a cabin not far from the one where Monk is staying.