Madi and Mike are challenged to prove that dogs have a soothing effect on people. They visit a pediatrician and learn about how the body responds to stressful situations like going to the doctor's office. Then the kids create a data collection study that measures the pulses of people before and after playing with dogs. They try to find out whether patients feel calmer in the presence of dogs. Ruff sends another team of FETCHers to the Louisiana Bayou to learn how to make gumbo and learn about the rich cultural heritage of New Orleans.