There's nothing he can't knock down.
A former arm-wrestling champion raised in the U.S. returns to South Korea for a tournament that could return him to glory, but he finds his life complicated by the appearance of the biological family he never knew.
Mark
Soo-jin
Jin-ki
Celebrity
Mark's Mother
Jin-gi's Father
Combo
Macho Driver
Punch
Doctor Han
High School Student
Busan Couple
Announcer
PD Park
Chang-soo's Employee
Yoo Chang-soo
Joo-yun
Combo Team Member 2
English Elementary Student's Mother
Event Announcer