The original members, Uie, In Ah, and Ju Hyun, welcome the Sae Rok to the team. The Iron Girls get their first taste of boxing through a 90-second trial with Dong Hyun. After the trial, they face their first grueling challenge. They have to climb a steep 400-meter ski jump ramp within 12 minutes. Will the cute and lovely newcomer Sae Rok be able to keep up and stay on the team?
