Modern Family is a mockumentary sitcom that depicts three different families - the Dunphys, Mitchell and Cameron, and the Pritchetts. The Dunphys are a traditional nuclear family, while Mitchell and Cameron are a gay couple raising a daughter. The Pritchetts are a blended family with Jay remarried to a younger Colombian wife, Gloria, and helping raise her son Manny. Each family has a different dynamic and approach to conflict, with the Dunphys having a collaborative style while the Pritchetts engage more in covert conflict due to cultural differences. The show aims to portray the diversity of modern families in the 21st century.