In the time of enlightenment, a battle between a sword and a gun has started. Based in the time of enlightenment of 19th-century Joseon, this drama tells the story of Joseon's last swordsman named Park Yoon Kang who grabs a gun ditching his sword and grows to become the era's hero. Park Yoon Kang is the illegitimate son of the best swordsman in Joseon. After his father got killed, he trades sword for gun as he embarks on his revenge mission.
A rebel gunman is on the loose in the capital, killing all scholars who are of the Enlightenment. Yoon Kang's father hunts down the killer but it's a dangerous political game.
Yoon Kang gets involved with Soo In's affairs and the two of them find themselves chased by the master gunman for Hyun Am's book.
Yoon Kang develops deeper feelings for Soo In, but in the midst of his romantic endeavors his sister gets kidnapped.
Yoon Kang finally realizes that he's misunderstood his father all these years, but soon after faces an even bigger challenge.
Yoon Kang returns to Korea as Hasego Hanjo, a mysterious businessman with a preference for women and alcohol, and harboring a dark secret from his past. Soo In tries to get her hands on a camera.
Soo In believes that Hanjo is Yoon Kang, but he refuses to acknowledge her. Moo Duk and Won Shin get closer to identifying the mysterious gunman.
Yoon Kang reveals himself to a trusted ally to find Yun Ha more quickly. Won Shin finds a more definitive way to determine if Hanjo is Yoon Kang.
When Yun Ha is found, Yoon Kang will do anything to save her at the risk of exposing his identity. Soo In attempts at an explosion demonstration.
The Royal Court launches an investigation on who killed the Minister of Justice, which puts everyone in danger and jeopardizes Yoon Kang's safety
Soo In and her father are brought in and tortured to fulfill Second Vice Premier Kim's own nefarious needs, and it will require Yoon Kang's intervention to save them all from harm.
Ho Kyung is injured when an attempt on Interpreter Jung's life is made. Yoon Kang is one step closer to fulfilling his revenge when he discovers which gunman killed his father.
The truth comes out when too many people see Yoon Kang unmasked. Hye Won confronts her father about his shady dealings and threatens to leave him if he hurts Yoon Kang.
Yoon Kang finally captures Won Shin and hands him off to the police, but his troubles don't end as there are still corrupt members in the palace who can save Won Shin from death.
A mysterious savior helps Yoon Kang escape death while an old friend from his past returns to Joseon to shake the world up.
With Yoon Kang's archnemesis dead, he must now deal with the fallout from Hye Won. Lord Kim Jwa Young shakes up the capital by first going after every runaway slave found in the city.
A rebellion shakes up the capital and puts the king and queen's lives at risk.
Kim Jwa Young is finally captured and arrested for his treason, but the King must rely on old enemies to maintain his power.
With the king and queen under his thumb, Won Shin manages to gain control over all merchant and trade deals in Joseon at the expense of people's lives. And Yoon Kang does everything he can to stop him.
The Court of Justice and Won Shin's men go after Yoon Kang when the king orders for his arrest for murdering Japanese citizens.
Plans are underway to begin a coup to save the king from the corrupt officials that surround him. Soo In enters the palace as a court maid.
Loyalties and friendships are questioned when Yoon Kang and the progressives are labeled as the 'rebels' and take over the palace by force.
The stunning finale begins with the Qing forces coming in to support the Queen and undo all the changes that Yoon Kang and Soo In fought so hard to make
Complete episode guide for Gunman in Joseon with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
This episode guide is organized by seasons, making it easy to track your viewing progress or find specific episodes. Use the episode information to plan your binge-watching sessions or catch up on missed episodes.