Infinite Challenge

Season 2, Episode 23: Black Day Special

All Episodes - Season 2

Episode 1

Baseball Challenge

Episode 2

Horse Racing

Episode 3

Firefighting Challenge: Part 1

Episode 4

Firefighting Challenge: Part 2

Episode 5

Sweeper Challenge

Episode 6

Mental Calculation Challenge

Episode 7

Infinite Challenge - Master of Quiz Airs

Episode 8

Christmas Special

Episode 9

A Year-End Special

Episode 10

New Year's Day Special

Episode 11

Master of Quiz

Episode 12

Grandmother's House Special

Episode 13

Lunar New Year Special - Who Do You Want to Keep as a Pet?

Episode 14

Spring Special

Episode 15

St. Valentine's Day Special

Episode 16

School Graduation Special

Episode 17

Lee Hyori Special: Part 1

Episode 18

Lee Hyori Special: Part 2

Episode 19

Beginning School Special

Episode 20

20th Episode Special

Episode 21

Camping Special

Episode 22

April Fools' Day Special

Episode 23

Black Day Special

Episode 24

New York Special

Episode 25

China Special

Episode 26

Yi Sun-sin Birthday Special / Lee Young-ae Special Event