Chase and Leo enter a "create-your-own" battle bot competition.
Eleven new teams take off on the journey of a lifetime from Venice Beach, Calif. and head for Rio de Janeiro, where teams take a thrilling helicopter ride and face a huge decision at the Fast Forward.
Teams travel to the birthplace of Pope Francis, where they visit the church where he was baptized. Also, Racers are driven up a wall when they learn a tango with a twist.
Attention to detail is paramount during a meaty challenge and one team faces a penalty after a costly mistake.
