2. Episode 2

The members tackle Seoraksan's brutal 10-hour course. Pork belly and ramyeon at the shelter taste like heaven — but the real hell begins on the descent.

3. Episode 3

They head up Taebaeksan on a tempting offer that could make future hikes easier — but the steep trail leaves Car, the garden with pain in his leg.

4. Episode 4

The four race the clock to reach the summit before sunrise. During a Korean beef feast after the hike, they learn that the next peak awaits in Jeju.

5. Episode 5

After soaking up Jeju's charms, the group splits up for their next climb — only to find one team's path smooth and the other's far tougher than expected.

6. Episode 6

7. Episode 7

8. Episode 8

9. Episode 9

10. Episode 10