Dr. Drew hosts the cast of Teen Mom 3 in front of a live studio audience and sits down with the moms from Teen Mom 3. Katie offers a big shocker about the current status of her relationship with Joey and things heat up when he faces her mom on stage. Meanwhile, things get explosive when Briana confronts Devoin about his role as Nova's father. Dr. Drew examines Alex's suspicions about Matt's drug use. Mackenzie and Josh try to reconcile their relationship after exposing the fact that they cheated on each other.