| Genre: | Action, Romance |
| Director: | Yoo Chul-yong Oh Sang-won |
| Starring: | Choi Siwon Lee Si-young Lee Sung-jae |
| Country: | South Korea |
| Language: | Korean |
| Num Episodes: | 16 |
| Location: | Korea |
| Runtime: | Mondays and Tuesdays at 21:55 (KST) |
| Company: | Annex Telecom |
| Channel: | Korean Broadcasting System |
Poseidon is a 2011 South Korean action television series starring Choi Siwon, Lee Si-young, Lee Sung-jae, Han Jung-soo, Jung Woon-taek and Kil Yong-woo.[1] [2] It aired on KBS2 from September 19 to November 8, 2011, on Mondays and Tuesdays at 21:55 for 16 episodes.
The drama revolves around the duties of Korean Coast Guard officers on rescues, terrorism threats, and other special missions; and their obstacles in life and love. It takes its name from the Poseidon Team, a special forces unit of the Marines.[3]
A worldwide criminal syndicate known as Heugsahoe exists. Their boss is Choi Hee-gon.
In 2008, the leader of the Intelligence Investigation Team of the Maritime Police, Kwon Jung-ryool (Lee Sung-jae), forms a secret investigation team to capture crime boss Choi Hee-gon. As Jung-ryool gets closer and closer to capturing Choi Hee-gon, Jung-ryool's wife Min-jung suddenly goes missing. Her dead body is then thrown in front of Jung-ryool. Soon after, other family members involved in the undercover operation are killed.
Sun-woo (Choi Siwon) goes undercover on Jung-ryool's orders. Sun-woo can't stop the mission, even though there's continuous threats on his life. Soon, a policewoman who investigates Sun-woo is killed. It's clear that the woman's murder was committed by crime boss Choi Hee-gon, but evidence is still lacking for his arrest. Finally, the undercover operation is abandoned.
3 years later, Jung-ryool appears obsessed with his job, trying to forget the guilt he feels over the death of his wife. With the help of Hyun Hye-jung (Jin Hee-kyung) and a director of the maritime police, Jung-ryool forms another special investigation team. To avoid the attention of others inside the maritime police and crime boss Choi Hee-gon, the special investigation team is disguised as the #9 investigation team which is responsible for unsolved cases.
Sun-woo has been demoted to the country maritime police office in Gunsan City. There, Sun-woo busts an illegal trafficking organization and runs off with their smuggled goods. Sun-woo now becomes a fugitive. This was part of Jung-ryool and Sun-woo's plan to catch Choi Hee-gon. They hope to go through middle man Jung Deok-soo, nicknamed Popeye. Sun-woo approaches Popeye with his stolen goods, but Popeye finds out the truth. Luckily, Sun-woo is saved with the help of tactical team leader Kang Eun-chul (Yunho), his former colleague.
Sun-woo now joins the #9 investigation team. Sun-woo also takes an interest in Corporal Soo-yoon (Lee Si-young). Meanwhile, Popeye kidnaps Kang Eun-chul (Yunho). The abduction of Kang Eun-chul brings back memories of the slain police officer several years earlier.
The drama was originally set for broadcast on SBS during the first half of 2011, starring Eric Mun and Kim Ok-bin in the roles of Kim Sun-woo and Lee Soo-yoon, respectively. However they dropped out when production was halted after the Bombardment of Yeonpyeong incident in November 2010.[6] Production company Annex Telecom transferred to a different network KBS, and filming resumed in August 2011 with the casting of Choi Siwon and Lee Si-young.[7] [8]
| width=100 | Date | width=100 | Episode | width=100 | Nationwide | width=100 | Seoul |
|---|---|---|---|---|---|---|---|
| 2011-09-19 | 01 | 7.6% | 8.8% | ||||
| 2011-09-20 | 02 | 6.6% | 8.7% | ||||
| 2011-09-26 | 03 | 7.0% | 8.6% | ||||
| 2011-09-27 | 04 | 6.2% | 8.3% | ||||
| 2011-10-03 | 05 | 5.0% | 8.9% | ||||
| 2011-10-04 | 06 | 6.4% | 8.6% | ||||
| 2011-10-10 | 07 | 5.6% | 9.3% | ||||
| 2011-10-11 | 08 | 9.2% (16th) | 9.6% (13th) | ||||
| 2011-10-17 | 09 | 9.2% (17th) | 9.2% (18th) | ||||
| 2011-10-18 | 10 | 8.3% | 8.9% | ||||
| 2011-10-24 | 11 | 9.3% | 10.0% (19th) | ||||
| 2011-10-25 | 12 | 9.2% (19th) | 8.8% (18th) | ||||
| 2011-10-31 | 13 | 8.4% | 9.1% | ||||
| 2011-11-01 | 14 | 9.4% (18th) | 9.2% (15th) | ||||
| 2011-11-07 | 15 | 8.4% | 8.9% | ||||
| 2011-11-08 | 16 | 10.3% (15th) | 11.5% (9th) | ||||
| Average | 7.9% | - | |||||
The series was sold to seven countries in Asia, including Japan, China and Taiwan.[9]
It aired on Mnet Japan beginning December 14, 2011.[10]