Members of KBS 2TV variety show '2 Days & 1 Night Season 4' wrapped up their eventful trip in Seoul and headed to Ulleungdo. The episode aired on the 19th featured the final story of the six members' 'One Night Reborn Trip in Seoul,' which took place in Seoul. According to Nielsen Korea nationwide ratings, it recorded a 6.3% viewership, ranking first in its time slot. In particular, the scene where Moon Se-yoon and Lee Jun, who departed for Ulleungdo earlier, reunited with the other members after 14 hours reached a peak rating of 9.9%.

At Namsan Seoul Tower in Seoul, the sleeping spot lottery game 'Indoor Sleeping Hunters' resulted in Kim Jong-min, Lee Jun, and Yoo Seon-ho being assigned to sleep outdoors. The members confirmed for indoor sleeping expected a hotel, but the actual sleeping location was the only under-bridge observatory in Korea, located in the middle of the Hangang Bridge at Gwangjin Bridge 8th Street. The members ended a special day while admiring the night view of Seoul.

The next morning, a wake-up mission called 'AI Music Quiz' was held. Moon Se-yoon and DinDin quickly answered two questions correctly and secured their early leave, followed by Jo Se-ho and Lee Jun. Kim Jong-min and Yoo Seon-ho failed to answer the last two questions correctly and completed the 'Taebo Follow-up Dance' leave mission for about 30 minutes, concluding their Seoul trip.

Two days before the main filming, the production team informed the members that only two people would start a special trip from the day before and selected the winners through a ladder lottery via video call. Moon Se-yoon and Lee Jun were chosen as the protagonists of the 2-night, 3-day Ulleungdo trip and began filming by boarding a cruise at Pohang Yeongilman Port the night before the main shoot.

Moon Se-yoon and Lee Jun spent 2 nights and 3 days on a luxury cruise, raising their excitement. They competed in three games against the production team, winning two and losing one, securing 60,000 won, which they used to order boneless chicken and dried pollack as a late-night snack. The two enjoyed the charm of the trip by livening up the atmosphere at the onboard pojangmacha and coin karaoke.

Arriving in Ulleungdo first, Moon Se-yoon and Lee Jun had a meal and then played a payment lottery with the PD. The PD won and paid the staff meal bill of 460,000 won, while Moon Se-yoon paid for the coffee, creating a warm atmosphere.

Kim Jong-min, Jo Se-ho, DinDin, and Yoo Seon-ho, who were not selected for the 2-night, 3-day trip, took a passenger ship from Mukho Port in Donghae to Ulleungdo. Shortly after departure, the ship was severely rocked by waves, causing everyone to suffer from seasickness, and some staff members also experienced health issues. Kim Jong-min revealed his seasickness remedy, saying, "You have to eat squid."

The production team held the 'Se-yoon & Lee Jun Quiz,' betting on snack expenses at the convenience store, asking questions about the two who left earlier, such as the number of underwear they packed, their late-night snack menu, and the song titles and scores from the coin karaoke. Jo Se-ho answered the most questions correctly and won 10,000 won for snacks, followed by Kim Jong-min, who received 5,000 won. The four shared snacks and built teamwork during their first trip to Ulleungdo.

Upon arriving at Dodong Port in Ulleungdo, Moon Se-yoon and Lee Jun each chose one of the keywords 'Up' or 'Down' to become leaders of different teams. Moon Se-yoon chose 'Down,' and Lee Jun chose 'Up.' Kim Jong-min, Jo Se-ho, DinDin, and Yoo Seon-ho also divided into teams based on the two keywords just before arrival. The six members began a new journey in Ulleungdo.

'2 Days & 1 Night Season 4' airs every Sunday at 6:10 PM.