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Cha Giho sees Gangjae's declaration of war on Mujin as an opportunity. Suspecting Jiwoo is up to something, Jeon Pildo tails her. (Netflix)
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Photo © Netflix
![Undercover - Episode 4 - Making of](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/165/776/165776901_262976.jpg)
Photo © Netflix
![Undercover - Episode 4 - Making of](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/165/776/165776902_5b791c.jpg)
Photo © Netflix
![Undercover - Episode 4 - Making of](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/165/776/165776903_51b698.jpg)
Photo © Netflix
![Undercover - Episode 4 - Making of](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/165/776/165776906_bd8773.jpg)
Photo © Netflix
![Undercover - Episode 4 - Making of](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/165/776/165776907_df1aa6.jpg)
Photo © Netflix
![Undercover - Episode 4 - Making of](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/165/776/165776908_5a69fc.jpg)
Photo © Netflix
![Undercover - Episode 4 - Making of](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/165/776/165776904_30bae5.jpg)
Photo © Netflix
![Undercover - Episode 4 - Making of](http://image.pmgstatic.com/cache/resized/w663/files/images/film/photos/165/776/165776905_21840a.jpg)