Following a gruelling stint at the police academy, where his unruly nature frequently clashed with that of his hellish drill instructor, Isoo returns to work as a fully-fledged police officer, only to discover that his former instructor, Joo Hyera, is now the new leader of the violent crimes team. And as if that wasn't bad enough - the pair are now partners!

• Ahn Bo-hyun
• Jung Eun-chae
• Kang Sang-jun
• Kim Shin-bi
• Kim Myung-soo
• Jeong Ga-hee