The WONDERfools S1E4 — Boon the King Duck vs Wunderkinder

8.2

The WONDERfools•Season 1•Episode 4

Boon the King Duck vs Wunderkinder

8.2/10 · 757 votesMay 15, 202660 min

Ranked #1 of 8 in Season 1•+0.3 vs season avg

Discussion

Dr. Ha Won-do returns after 20 years, chasing secrets of the Child of Eternity. Later, the gang faces an attack — still unsure of their powers.

Previous episodeE3 · Brutes and Bad Luck Do Come in Droves Next episodeE5 · All We Need Is You

Seasons1

All 1

Season 1 Episodes8

E1 7.5

Every Life Comes With a Surprise Twist

E2 7.7

Secrets Are Meant To Be Kept

E3 8.0

Brutes and Bad Luck Do Come in Droves

E4 8.2Now viewing

Boon the King Duck vs Wunderkinder

E5 8.0

All We Need Is You

E6 8.0

All Roads Lead to Chae-ni

E7 7.9

The Guardians of Haeseong City Part 1

E8 8.2

The Guardians of Haeseong City Part 2

Cast9

Park Eun-bin

Eun Chae-ni

Cha Eun-woo

Lee Un-jeong

Choi Dae-hoon

Son Gyeong-hun

Im Sung-jae

Kang Ro-bin

Kim Hae-sook

Kim Jeon-bok

Son Hyun-joo

Ha Won-do

Jung Yi-seo

Seok Ju-ran

Choi Yoon-ji

Seok Ho-ran

Bae Na-ra

Kim Pal-ho

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Episode Summary

"Boon the King Duck vs Wunderkinder" is episode 4 of The WONDERfools season 1. It scored 8.2/10 from 757 votes, ranking #1 of 8 episodes this season (season average 7.9). It aired on May 15, 2026.

Next: E5 · All We Need Is You Best of Season 1