Lacy shared his family's story with ESPN in a heartwarming "Homecoming" feature.
Before he was a big star at Alabama, Lacy and his family were forced out of their home by Hurricane Katrina in 2005. They settled into a trailer in Geismar, Louisiana.
Lacy used football to take out his frustration in a healthy way. Of course, he went on to be a star with the Crimson Tide and was selected by the Packers in the second round of the 2013 NFL draft.
Recently, the 24-year-old fulfilled a promise that he made to his parents. He made sure that they didn't have to live in a trailer by buying them a house.
Watch the video to hear Lacy's mother talk about everything they have been through and how the Packers running back's success has helped change their life.