Wing Lam is co-founder of Wahoo's Fish Taco. With more than 60 restaurants in four states across the country, he made his first million when he was just 27 years old. Lam travels to Mobile, AL, a city still recovering from the devastating Gulf Oil Spill of 2010, with a mission to find deserving people and organizations in need. During his week-long visit, he meets a number of grass-roots organizations that touch and move him in amazing ways, including: Tri-Costal Community Outreach, a non-profit that provides immediate and long-term humanitarian services to low and moderate level income individuals and families in the Mobile area, as well as 15 Place, a day shelter that serves as a one-stop center for the homeless. The shelter offers meals, showers, laundry facilities and other assistance and programs to homeless men, women and children. Lam also meets a local crabber and spends time with his family, learning about the current state of the fishing industry. After a week of getting to know these people and organizations, he shares the surprise of a lifetime with them on "Secret Millionaire" SUNDAY, SEPTEMBER 1 (8:00-9:00 p.m., ET) on the ABC Television Network.