Teams take an exhilarating ride across a 300-foot zip line, and one Racer's nerves get the best of her. Will she be able to step off the ledge? A deep water phobia paralyzes one Racer who is afraid of drowning during a challenge. Frustration mounts when Teams have difficulty searching for a clue buried inside thousands of Russian nesting dolls.* Encouraged by other Teams and locals, one Racer overcomes not being able to swim by jumping off a high dive.