Tug-of-War Challenge

Season 1 - Episode 1

Nothing is impossible! A super-special project to become a top-notch celebrity! "Infinite Challenge"!! The reckless class president, Yoo ...

100-Meter Sprint

Season 1 - Episode 2

Motorboat vs. Paddle Boat

Season 1 - Episode 3

Public Bath Challenge

Season 1 - Episode 4

Dog-Paddle Swimming Challenge

Season 1 - Episode 5

Clothes-Washing Challenge

Season 1 - Episode 6

Collecting Coin Challenge

Season 1 - Episode 7

Stand-Up Challenge

Season 1 - Episode 8

Car-Washing Challenge

Season 1 - Episode 9

Pump Challenge

Season 1 - Episode 10

Digging Challenge

Season 1 - Episode 11

Special Coverage from Guam - Part 1

Season 1 - Episode 12

Special Coverage from Guam - Part 2

Season 1 - Episode 13

Make-a-Noise Challenge

Season 1 - Episode 14

Mosquito-Catching Challenge

Season 1 - Episode 15

Summer Special: The Ghost-house Challenge

Season 1 - Episode 16

Briquette Removal Challenge

Season 1 - Episode 17

Special Coverage: Top 5 Highlights of 'Reckless Challenge'

Season 1 - Episode 18

Car-Push Challenge

Season 1 - Episode 19

Drag the Sled Challenge

Season 1 - Episode 20

Count 60 Seconds at High Altitude

Season 1 - Episode 21

Esper Ito vs. Infinite Challenge Members

Season 1 - Episode 22

Maria Sharapova vs. Infinite Challenge Members, Part 1

Season 1 - Episode 23

Maria Sharapova vs. Infinite Challenge Members, Part 2

Season 1 - Episode 24

Arm Wrestling Challenge

Season 1 - Episode 25

Applying Lipstick on Carnival Rides

Season 1 - Episode 26

Reckless Challenge Best Moments + Unaired Race with Ostrich Challenge Scene

Season 1 - Episode 27