Against the backdrop of major events in American history like the Civil War and the Great Depression, "The Toys that Built America" shares a different story -- one that brings new products and nostalgic toys during cultural and economic shifts. The four-part documentaries showcases visionaries such as the Parker Brothers, Milton Bradley, and Ruth Handler who transformed a small toy company into the billion-dollar empire now known as Mattel. It reveals the stories behind groundbreaking innovations like the Frisbee, and the Slinky was created. Additionally, the documentaries unveils competitive rivalries between iconic brands that changed the fabric of our nation forever.