With baby number 4 on the way, Bonnie and Chip (Portland, Oregon) are working through a delicate transition. Bonnie is frustrated by how much she is doing at home while being the primary breadwinner. Chip walks away from his flailing business to step up at home-and struggles with an identity crisis. Chuck and Amy (Washington, D.C.) are comfortable with Amy as the main earner and Chuck supplementing. But when Chuck is laid off, the loss of income is keenly felt in this modest middle-class family. Julee and Ross (Nashville, Tennessee) see their flip as temporary while Ross launches his career as an actor. They are moving the family across the country to Los Angeles with high hopes for his acting career. Fred and Robyn (Seattle, Washington) are stuck in a rut. They fell in love as young snowboarders. But 15 years and 2 kids later, Robyn feels trapped as the sole income provider. Meanwhile Fred, his professional snowboarding career over, struggles to find work. Over 18 months, The Big Flip follows the lives of these four “flipped” families where the wife wins the bread and the husband takes care of home and kids.