As the newest member of the BSC, Dawn is eager to prove herself. So when a big job comes along, she jumps at the chance to show everyone what she is made of. The Barretts are even more challenging than Dawn expected. The house is a mess, Mrs. Barrett is unreliable and the kids are out of control. Dawn knows she is a great babysitter, but this is impossible! She only knows one thing for sure: a member of the BSC never gives up!