The WONDERfools
Boon the King Duck vs Wunderkinder still

S01E04

Boon the King Duck vs Wunderkinder

Aired May 15, 2026

Free, with no ads. Tick off what you watch and see what airs next.

Summary

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.

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