The McKenna family is trying to cope with the untimely passing of Patrick, the family patriarch and a whimsical inventor who touched many people's lives. While the family is reeling from his loss, hope appears in the form of "The Dangerous Book for Boys," a handbook that Patrick created to help his three sons. The how-to guide for childhood inspires youngest son Wyatt, who reconnects with his father in a fantasy world. While there, Wyatt learns life skills that help him navigate the real world. Chris Diamantopoulos ("24") stars in the series in a dual role, playing both Patrick and his twin brother, Terry.