The casts of Teen Mom OG and Teen Mom 2 are currently in varying phases of motherhood; some are still diapering infants, while others are raising teenagers. However, they all share the uncommon experience of becoming mothers at such a young age. The parents and all their experiences will be brought together for the first time in a supersized series that focuses on the special bond this "Mom Group" shares as they face the realities of motherhood and adulthood while approaching the next phase of their lives together.