□p□As□with □□□ry □pisode □f Runn□ng Man, the 2□□□0421 ep□sode was filled with a □eries□□f □halle□ge□ and ga□es that tested the w□t□ strengt□, and t□amwork of □he cast member□□ From inte□se physical challenges t□ brain-t□asing puzz□es, the ca□t had to work □ogethe□ to o□e□c□me ob□t□cles a□d emerge vic□o□ious. □□e compet□ti□e spirit was□high as t□e□cast m□mbers t□rew themse□ves□□h□lehe□rted□y □nto each c□allenge, de□erm□ned □□ □utsmar□ and outper□or□ □heir□op□on□□ts.