Season guide

Infinite Challenge: Reckless Challenge

27 episodes Premiered Apr 23, 2005 Updated Jul 18, 2026

The three regular cast members, joined by three guests, attempt to complete sports-related missions in an outdoor studio. The challenges were based on viewers' suggestions.

Season overview

The three regular cast members, joined by three guests, attempt to complete sports-related missions in an outdoor studio. The challenges were based on viewers' suggestions.

Episodes

S1·E1

Tug-of-War Challenge

Apr 23, 2005 · 37 min

Nothing is impossible! A super-special project to become a top-notch celebrity! "Infinite Challenge"!! The reckless class president, Yoo Jae-seok! The king of hair, Pyo Young-h

S1·E2

Infinite Challenge: Reckless Challenge

Season overview

Episodes

Tug-of-War Challenge

100-Meter Sprint

Motorboat vs. Paddle Boat

Public Bath Challenge

Dog-Paddle Swimming Challenge

Clothes-Washing Challenge

Collecting Coin Challenge

Stand-Up Challenge

Car-Washing Challenge

Pump Challenge

Digging Challenge

Special Coverage from Guam - Part 1

Special Coverage from Guam - Part 2

Make-a-Noise Challenge

Mosquito-Catching Challenge

Summer Special: The Ghost-house Challenge

Briquette Removal Challenge

Special Coverage: Top 5 Highlights of 'Reckless Challenge'

Car-Push Challenge

Drag the Sled Challenge

Count 60 Seconds at High Altitude

Esper Ito vs. Infinite Challenge Members

Maria Sharapova vs. Infinite Challenge Members, Part 1

Maria Sharapova vs. Infinite Challenge Members, Part 2

Arm Wrestling Challenge

Applying Lipstick on Carnival Rides

Reckless Challenge Best Moments + Unaired Race with Ostrich Challenge Scene