Ross travels to San Diego to visit Marcel, his monkey. Joey is stalked by a fan of his daytime drama.
Rachel and Monica compete for the affections of Jean-Claude Van Damme after meeting him on a movie set. Ross and Marcel go on a whirlwind tour of the city.
When it appears one of their own shot an unarmed man on a Boston subway platform, the team must find the real killer while clearing their detective's name.