In Episode 4 of Are You Sure?!, Jimin and Jungkook travel to Jeju Island, South Korea, where they embrace the island's natural beauty and rich culture. The episode opens with breathtaking views of Jeju’s landscapes, setting the stage for a day filled with adventure.

The duo engages in various outdoor activities, including hiking up Hallasan Mountain and exploring stunning waterfalls. Their interactions with locals add a heartwarming touch, as they learn about Jeju's traditions and culinary delights. A highlight of the episode is their attempt to catch fresh seafood, showcasing their playful rivalry and teamwork.

Throughout the episode, themes of friendship and exploration are prominent, as Jimin and Jungkook share personal stories and reflect on their journey together. The episode culminates in a serene beach sunset, where they enjoy a picnic, reinforcing the bonds of friendship and the joy of shared experiences. This episode captures the essence of Jeju Island, leaving viewers inspired to explore its beauty.