Rather than take it slow , she pushes Scarlet and herself to too hard and ends up spraining Scarlet 's leg during practice .
The girls are given the task of learning lateral dressage and Sarah especially is determined to learn it .
Rather than take it slow , Sarah pushes Scarlet and herself to too hard and ends up spraining Scarlet 's leg during practice .
The girls are given the task of learning lateral dressage and Sarah especially is determined to learn it .