E1 - Tug-of-War Challenge

Aired: April 23, 2005

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-ho! Jeong Hyeong-don, a life lived with one strength! Only the mouth lived! Dr. Noh Hong-cheol! The special guest is Michael Jackson from Korea! Dancer Lee, Lee Jung!! Part 1 of the Super Member's Infinite Challenge! Engage in a tug-of-war with an 800kg bull, the emperor of bullfighting who conquered the whole country! Surprised by the bull's strength, the Infinite Challenge team... Group tire dragging, angry Jeong Hyeong-don struggles.. Severe training continues.. An unpredictable super-special challenge, bull vs human power confrontation!! This Saturday, the laughter bombing begins!!

E2 - 100-Meter Sprint

Aired: April 30, 2005

E3 - Motorboat vs. Paddle Boat

Aired: May 07, 2005

E4 - Public Bath Challenge

Aired: May 14, 2005

E5 - Dog-Paddle Swimming Challenge

Aired: May 21, 2005

E6 - Clothes-Washing Challenge

Aired: May 28, 2005

E7 - Collecting Coin Challenge

Aired: June 04, 2005

E8 - Stand-Up Challenge

Aired: June 11, 2005

E9 - Car-Washing Challenge

Aired: June 18, 2005

E10 - Pump Challenge

Aired: June 25, 2005

E11 - Digging Challenge

Aired: July 02, 2005

E12 - Special Coverage from Guam - Part 1

Aired: July 09, 2005

E13 - Special Coverage from Guam - Part 2

Aired: July 16, 2005

E14 - Make-a-Noise Challenge

Aired: July 23, 2005

E15 - Mosquito-Catching Challenge

Aired: July 30, 2005

E16 - Summer Special: The Ghost-house Challenge

Aired: August 06, 2005

E17 - Briquette Removal Challenge

Aired: August 13, 2005

E18 - Special Coverage: Top 5 Highlights of 'Reckless Challenge'

Aired: August 20, 2005

E19 - Car-Push Challenge

Aired: August 27, 2005

E20 - Drag the Sled Challenge

Aired: September 03, 2005

E21 - Count 60 Seconds at High Altitude

Aired: September 10, 2005

E22 - Esper Ito vs. Infinite Challenge Members

Aired: September 17, 2005

E23 - Maria Sharapova vs. Infinite Challenge Members, Part 1

Aired: September 24, 2005

E24 - Maria Sharapova vs. Infinite Challenge Members, Part 2

Aired: October 01, 2005

E25 - Arm Wrestling Challenge

Aired: October 08, 2005

E26 - Applying Lipstick on Carnival Rides

Aired: October 15, 2005

E27 - Reckless Challenge Best Moments + Unaired Race with Ostrich Challenge Scene

Aired: October 22, 2005